Since Javascript is often used for checking data a user puts into a form on a web page: Do the following:
*Explain how Javascript can be called when a form is submitted, and how it can access the form element data.
*Even though input data can be checked on a server, why would you be likely to use Javascript for checking forms? Then even though you have double-checked, why would you still double-check the server code?
Answers
In JavaScript, a form can be called when submitted by attaching an event listener to the form's submit event. This can be done using the `addEventListener` method or by assigning a JavaScript function to the `onsubmit` attribute of the form element. When the form is submitted, the JavaScript function associated with it is triggered.
To access the form element data in JavaScript, you can use the `document.forms` object or the `getElementById` method to retrieve the form by its ID. Once you have access to the form, you can use various methods like `elements`, `querySelector`, or `querySelectorAll` to retrieve input field values, checkboxes, radio buttons, and other form elements by their names or IDs.
JavaScript is commonly used for form validation on the client-side because it provides immediate feedback to users without requiring a round-trip to the server. It can perform real-time validation such as checking required fields, validating email addresses, enforcing data formats, and ensuring data consistency. This improves user experience by providing instant feedback and reducing server load.
Despite the use of JavaScript validation, it is still important to double-check the server-side code for several reasons. First, client-side validation can be bypassed or manipulated by users, so server-side validation acts as an additional security layer. Second, JavaScript may be disabled or not supported on some devices, making server-side validation necessary for those scenarios. Lastly, server-side validation ensures data integrity and consistency in case the client-side validation fails or is bypassed. It provides a final check to ensure that the submitted data meets the required criteria and prevents any potential vulnerabilities or data inconsistencies.
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Related Questions
HELP ASAP, AND YES I KNOW, WRONG CATEGORY. SORRY!
A rock band is a type of
ensemble
metronome
time signature
treble clef
Answers
Answer:
A. ensemble.
Explanation:
A musical ensemble can be defined as a group of people who play instrumental and vocal music. It is also known as a music group and carries a distinct name. The word ensemble is derived from the Middle French ensemblée, meaning together at the same time.
A rock band will come under the category of a musical ensemble as it is also a group of people performing instrumental music or vocal music.
Therefore, option A is correct.
Outline the dangers arising as a result of using computers
Answers
Answer:
Visual impairment
Physical Health problem
Explanation:
The benefits of computers are so numerous a d has been an essential business and educational tool every organization must possess for one purpose or the other. Such is how immense its importance is. However, the computer also comes with it's own risk, which may include :
Visual impairment is a major problem most computer users face or will likely encounter in the future due to prolonged exposure of the eyes to the light emanating from the screen. This visual challenge is populary called the. Computer Vision Syndrome.
Similarly, related health related issues affecting the physical body such as the back, hip, neck pains which result from postural position when using the computer.
Why is one climate different from another?
Answers
______ is an advanced networking consortium of member institutions working in partnership to facilitate the development, deployment, and use of revolutionary internet technologies.
Answers
Internet2 is an advanced networking consortium of member institutions working in partnership to facilitate the development, deployment, and use of revolutionary internet technologies.
It aims to enhance the capabilities of the internet by providing high-performance networks and innovative services to support research, education, and collaboration. Its members include universities, research institutions, corporations, government agencies, and other organizations that are dedicated to advancing the frontiers of knowledge and innovation through the use of cutting-edge networking technologies.
Internet2 is an advanced networking consortium of member institutions working in partnership to facilitate the development, deployment, and use of revolutionary internet technologies.
Internet2 is a consortium of research and education institutions, including universities, government agencies, and industry partners. It is dedicated to advancing the development and deployment of innovative Internet technologies and applications. Internet2 provides a high-performance network infrastructure, collaborative tools, and support for research and education initiatives.
The consortium fosters collaboration among its members to push the boundaries of networking and technology, enabling advancements in areas such as scientific research, data-intensive applications, virtual reality, telemedicine, and more. Through its efforts, Internet2 aims to facilitate the evolution and adoption of transformative internet technologies for the benefit of its member institutions and the broader research and education community
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If creating a many to many relationship in your database, what must you include to prevent the database from failing due to our resolved relationships?
A. Linking entity
B. Parent entity
C. Lookup entity
D. Child entity
Answers
Answer:
A. Linking entity
Explanation:
Which term is defined as a single page within a spreadsheet file?
Answers
Answer:
A or C
Explanation:
I'm sorry if I'm wrong
When you connect a printer to your computer, ________ allows the operating system to detect the printer to make setup easier.
Answers
Answer:
PnP
Explanation:
A garments manufacturing company buys various types of natural and synthetic materials to produce clothes. Which material is a synthetic material?
A. cotton
B. nylon
C. jute
D. silk
E. linen
I need this answer please!! 20 points
Answers
Answer: A.
Explanation:
Write down a scratch program which:
performs the following tasks 5 times:
1. asks the user to input numbers
2. add the numbers in total variable
3. outputs the result
Answers
7. Write long answer of the following questions. a. Explain the various tabs used by Microsoft Office Word 2010.
b. What is design template? How to create a template? Write with proper steps.
c. What is watermark text? What is the purpose of using it? Write proper steps to insert watermark in your document
Answers
Explanation:
A time-saving strategy that helps define unfamiliar words involves using
familiar words for clues.
the dictionary for clues.
online resources.
reference books.
Answers
The correct answer is A. Familiar words for clues
Explanation:
Finding unfamiliar words is common while reading, especially in texts that belong to a specific field such as medicine, technology, etc. This can be handled through multiple strategies such as using a dictionary, guessing the meaning of the word based on its parts, and using context clues.
In this context, one of the easiest and most time-saving strategy is the use of context clues that implies using the familiar words as clues to guess the meaning of an unfamiliar word. This is effective because in most cases the meaning of an unknown word can be determined using the context of the word or words around the unknown word. Also, this strategy takes little time because you only need to analyze the sentence or paragraph where the unknown word is. Thus, the time-saving strategy to define unfamiliar words involves using familiar words for clues.
Answer:
A is correcto mundo
Explanation:
referencing the lakehouse: what scale is indicated on the following view of the lakehouse? sections & details: wall section
Answers
The scale indicated on the view of the lakehouse wall section is 1/4 inch equals 1 foot.
The scale indicated on the view of the lakehouse wall section is 1/4 inch equals 1 foot. This means that every 1/4 inch on the drawing represents 1 foot in real-life dimensions. The scale is used to accurately depict the size and proportions of the wall section in relation to the actual dimensions of the lakehouse.
By using a scale, architects and designers can effectively communicate the design details to contractors, builders, and other professionals involved in the construction process. It ensures that everyone understands the measurements and specifications of the wall section, including the height, width, and thickness of the walls, as well as the placement of windows, doors, and other elements.
The 1/4 inch equals 1 foot scale is commonly used in architectural drawings and provides a good level of detail while still allowing for clear representation on standard-sized drawing sheets. It strikes a balance between providing sufficient information and keeping the drawing manageable and easy to read.
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the area of an object that extends past the edge of a page to compensate for variations in the output process is called the
Answers
The bleed is the portion of an entity that extends beyond the margins of a page to account for changes in the output process.
What is output of data?Raw data refers to the process and technology that enables data to be evaluated under different circumstances and updated by the researcher as needed. Any econometric analysis yields data as a result that must be examined.
Does production imply outcome?This can be easily understood by considering outcomes as the outcomes and outputs as the activities supporting the intended outcomes. For example, "increased client happiness" could be a business outcome. A responsive online store might be a product that can assist in achieving this.
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unified modeling language (uml) was created by the international organization for standardization (iso) true or false
Answers
The specification for uml (unified modeling language) is not maintained by the object management guild.
In the realm of software engineering, the Unified Modeling Language (UML) is a general-purpose, developmental modelling language that aims to offer a standardised method for visualising system architecture.
The initial driving force behind the development of UML was the desire to standarise the many notational frameworks and software design methodologies. Rational Software worked on it from 1994 to 1995, and they continued to lead the development until 1996.
The Object Management Group approved UML as a standard in 1997, and it has been run by this group ever since. The International Organization for Standardization (ISO) issued UML in 2005 as a recognised ISO standard. Since then, the standard has gone through frequent revisions to reflect the most recent UML revision.
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Correct handling and operation of office equipment prevents
A. injuries
B. stresses
C. burn - outs
D. ill - treatments
Answers
internet-based research Which of the following examples of using the internet to conduct research meets the federal definition of research with human subjects?
Answers
According to the federal definition, research with human subjects involves the collection of data from living individuals through intervention or interaction with them, or by obtaining identifiable private information.
Therefore, using the internet to conduct research with human subjects would involve interacting with individuals online or collecting identifiable private information through online means.
One example that meets this definition is a study that uses an online survey to collect data on the experiences of individuals living with a particular medical condition. The survey would involve interaction with individuals and could potentially collect identifiable private information, such as their name or contact information.
On the other hand, using the internet to conduct research that simply involves collecting data from publicly available sources, such as news articles or social media posts, would not meet the federal definition of research with human subjects.
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Imagine that it is 20 years after the final scene of to kill a mockingbird, and a grown up scout comes across a box of memories from the era presented in the book. What objects would be in the box? you should come up with 15 items that you might find in the box
Answers
These items represent important memories and symbols from the era depicted in "To Kill a Mockingbird" and would provide Scout with a nostalgic glimpse into her childhood experiences and the impactful events that shaped her life.
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When one media company buys suppliers and/or distributors to create integration in the production and distribution of messages, there is: Group of answer choices de-regulation a vertical merger a horizontal merger a conglomerate merger
Answers
A vertical merger can be a strategic move for a media company looking to expand its capabilities and increase its competitive advantage in the market.
When a media company buys suppliers and/or distributors to create integration in the production and distribution of messages, it is called a vertical merger. In a vertical merger, a company merges with another company that is a part of its supply chain or distribution network. This type of merger allows the media company to gain control over the entire production process, from the creation of content to its distribution to consumers.
Vertical integration can provide several benefits to the media company. For example, it can lead to cost savings by eliminating the need for middlemen in the production and distribution process. It can also improve efficiency by streamlining the supply chain and reducing the time it takes to get content to consumers.
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An office building has two floors. A computer program is used to control an elevator that travels between the two floors. Physical sensors are used to set the following Boolean variables.
The elevator moves when the door is closed and the elevator is called to the floor that it is not currently on.
Which of the following Boolean expressions can be used in a selection statement to cause the elevator to move?
answer choices
(onFloor1 AND callTo2) AND (onFloor2 AND callTo1)
(onFloor1 AND callTo2) OR (onFloor2 AND callTo1)
(onFloor1 OR callTo2) AND (onFloor2 OR callTo1)
(onFloor1 OR callTo2) OR (onFloor2 OR callTo1)
Answers
The following Boolean expressions, "onFloor1 AND callTo2" or "onFloor2 AND callTo1," can be used in a selection statement to move the elevator.
The commands to move the lift may be simply determined based on the other commands designed to be provided and received by the lift, which indicate what operation it is engaged in.
When the elevator is on the first floor and has to be taken to the second floor, the order "onFloor1 AND callTo2" can be used. The order "onFloor2 AND callTo1" would serve as the reverse of the previously given instruction and cause the lift to operate in the exact opposite manner.
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How do we check if a circle, c, overlaps with a group, g? a. Loop over the shapes in g and check temporaryShapeName.hitsShape(c) for each one. b. Check g.hitsShape(c) c. Check temporaryShapeName.hitsShape(c) d. Loop over the shapes in c and check temporaryShapeName.hitsShape(g) for each one.
Answers
SMPs are capable of retaining two or even three different forms, and temperature changes frequently cause these transitions to occur.
Thus, A magnetic or electric field, light, a solution, or a change in temperature can all cause SMPs to change their structure.
SMPs, like all polymers, can have a variety of properties, ranging from stable to biodegradable, soft to hard, elastic to rigid, depending on the structural components that make up the SMP.
Thermoplastic and thermoset (covalently cross-linked) polymeric materials are examples of SMPs. Up to three different shapes can reportedly be stored in memory by SMPs. SMPs have shown recoverable stresses of more over 800%.
Thus, SMPs are capable of retaining two or even three different forms, and temperature changes frequently cause these transitions to occur.
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what is the Result obtained after data processing called?
Answers
Answer:
Output
Any information which get processed by and sent out from a computer is called output. It is the final result which we get after processing
Answer:
output
Explanation:
it'll be called output
an algorithm is a finite set of instructions that accomplish a specific task. algorithms can be expressed in a variety of ways, such as natural language, diagrams for example: flowchart and pseudo code. clarity and readability are important considerations when expressing an algorithm in a programming language. algorithms executed by programs are implemented using programming languages. every algorithm can be constructed using combinations of sequencing, selection, and iteration. sequencing is the application of each step of an algorithm in the order in which the code statements are given. a code statement is a part of program code that expresses an action to be carried out.
Answers
Selection is the application of an algorithm to a specific set of data. iteration is the application of an algorithm to a data set repeatedly, until a desired result is achieved.
I believe that algorithms can be expressed in a variety of ways, depending on what is most clear and readable for the specific task. For example, an algorithm could be expressed in natural language, in a flowchart, or in pseudo code. It is important to consider clarity and readability when expressing an algorithm in a programming language, so that the code is easy to understand and follow. Algorithms can be implemented using programming languages, and every algorithm can be constructed using combinations of sequencing, selection, and iteration.
The Different Ways That Algorithms Can Be ExpressedAlgorithms are a set of instructions that are used to accomplish a specific task. They can be expressed in a variety of ways, such as natural language, flowcharts, and pseudo code. Clarity and readability are important considerations when expressing an algorithm in a programming language. This is because the code needs to be easy to understand and follow. Algorithms can be implemented using programming languages, and every algorithm can be constructed using combinations of sequencing, selection, and iteration.
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Place the following planning events in their most proper order.
1. Organizational Strategy
2. Information Technology Strategy
3. Information Security Strategy
4. Information Security Tactical Planning
5. Information Security Operational Planning
Answers
The proper order for the planning events is 1. Organizational Strategy 2. Information Technology Strategy 3. Information Security Strategy 4. Information Security Tactical Planning 5. Information Security Operational Planning. The order starts with the overarching Organizational Strategy, which sets the direction and goals for the entire organization.
Once the Organizational Strategy is established, the organization can develop its Information Technology Strategy. This strategy aligns the use of technology with the overall business objectives and outlines how IT will support and enable the organization's goals.
Next, the Information Security Strategy is developed. This strategy focuses specifically on security-related aspects of IT, ensuring the confidentiality, integrity, and availability of information assets. It encompasses policies, procedures, and controls to protect information and mitigate risks.
After the Information Security Strategy is in place, the organization can proceed with Information Security Tactical Planning. This involves the development of specific plans, projects, and initiatives to implement the security strategy. Tactical planning translates the strategic objectives into actionable steps and timelines.
Finally, Information Security Operational Planning takes place. This involves the day-to-day operational activities related to information security, such as incident response, vulnerability management, access control, and ongoing monitoring and assessment of security controls.
By following this order, organizations can ensure that their security planning is aligned with the overall organizational strategy, IT strategy, and specific security goals, allowing for a systematic and coherent approach to managing information security.
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PLS i need help - programming challenge
Write an algorithm that:
· Ask the user to input how many GCSE’s they have.
· They should then be allowed to enter a result for each GCSE grade.
· The computer should work out how many points they have got (9=9, 8=8, 7=7 etc).
· If their score is 40 or over it should output ‘You can go to the sixth form’
· If they their score between 35 and 39 it should output ‘A discussion is needed’
· Otherwise it should say ‘Sorry not enough points.’
Answers
This is written in python 3, so you need to have python and rename the file to GCSE.py
It runs in vanilla python, no addons required.
your macos installation is corrupted, and you want to boot from an external thunderbolt hard drive to repair the installation. which key(s) do you hold down at startup to boot from the external hard drive if you have an intel-based mac?
Answers
(D)OPTION KEY Choice If you have an Intel-based Mac, you can boot from the external hard drive by holding down the key during startup.
On a Mac, how do I press the Option key?
On Macs, where is the Option key located? A Mac keyboard typically has two Option keys. The symbol designates them, which are located to the left and right of the space bar, respectively. On the Mac keyboard, the Option keys are located to the left and right of the space bar.
Why won't the Option key on my Mac work?
Instead of an Option key, certain Apple keyboards have an Alt key. In essence, the Option key is the Alt key. It fulfills the same job as your Mac's keyboard.
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true/false : in general, look disk head scheduling will involve less movement of the disk heads than scan disk head scheduling.
Answers
It is true, in general, look disk head scheduling will involve less movement of the disk heads than scan disk head scheduling.
Which scheduling algorithm for disks is the best?When compared to FCFS, SCAN, C-SCAN, and C-LOOK disk scheduling algorithms with regard to these parameters, a few algorithms, such as SSTF and LOOK, will be the most effective algorithms.
Which disk scheduling algorithm Mcq is the best?The elevator algorithm is a disk scheduling technique, commonly referred to as a scan algorithm, in which the head begins at one end of the disk and goes to the other end, completing each request along the way.
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explain why dijkstra's algorithm (or any other "conceptual algorithm") cannot be directly applied to path finding in routing.
Answers
Dijkstra's algorithm is an efficient and reliable algorithm for finding the shortest path in a single-source graph, it cannot be directly applied to path finding in routing due to the dynamic nature of the graph.
Firstly, in routing, the graph is often dynamic and subject to change frequently, which means that the shortest path may not always be the optimal path. Secondly, routing algorithms must consider other factors, such as the available bandwidth, congestion, and security, which are not typically considered in the standard shortest-path algorithms. Thirdly, routing algorithms must also consider the scalability and performance of the network, which requires more complex and sophisticated algorithms than Dijkstra's algorithm.
In summary, while Dijkstra's algorithm is a powerful algorithm for finding the shortest path in a single-source graph, it cannot be directly applied to path finding in routing due to the dynamic nature of the graph, the need to consider other factors such as available bandwidth and congestion, and the requirement for scalability and performance in the network. Therefore, routing algorithms must be designed with more advanced and sophisticated algorithms that can handle these complexities.
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Arrange the storage media in order of relative storage size from smallest to largest.
CD
thumb drive
DVD
hard disk
Flash memory
Blue-ray
Answers
Answer:
CD (700 MB)
DVD (17.0 GB)
Blue-ray (50 GB)
Thumb drive (2 TB)
Hard Disk (20 TB)
Flash Memory (100 TB)
***WARNING*** Values shown are for maximums in 2020.
Explanation:
For this problem let's assume 2020 standards and that the question is asking about the storage size in terms of data storage and not physical size. Let's define the maximums for each of the following items:
CD --> Maximum size of 700 MB (Standard)
thumb drive --> Maximum size 2TB (Made by Kingston)
DVD (1 sided/ 1 layer) --> 4.7 GB (Retrieved from Quora user Daniel Dillon)
DVD (1 sided/ 2 layer) --> 8.5 GB (Retrieved from Quora user Daniel Dillon)
DVD (2 sided/ 1 layer) --> 9.4 GB (Retrieved from Quora user Daniel Dillon)
DVD (2 sided/ 2 layer) --> 17.0 GB (Retrieved from Quora user Daniel Dillon)
hard disk --> 20 TB (Made by Western Digital and Segate)
Flash memory --> 100 TB ( Made by NimbusData retrieved from techrader.com)
Blue-ray (single-layer) --> 25 GB ( Standard issued by Samsung )
Blue-ray (dual-layer) --> 50 GB ( Standard issued by Samsung)
Now that we have these maximums as defined in 2020, let's sort them from smallest to largest in terms of data storage size.
Note, 1 MB < 1GB < 1TB.
CD (700 MB)
DVD (17.0 GB)
Blue-ray (50 GB)
Thumb drive (2 TB)
Hard Disk (20 TB)
Flash Memory (100 TB)
Note, the order of maximum storage may be different than what your assignment seeks based on whatever year's data the assignment is looking for. This assortment is for technology available in 2020.
Cheers.
The term "thumb drive" refers to a flash memory storage device with its own processor for storage management.
What is thumb drive?A thumb drive (also known as a USB drive or flash drive) is a type of flash memory storage device that contains its own processor to manage its storage. It is small, portable, and typically connects to a computer via a USB port.
Flash drive is a type of flash memory storage device that contains its own processor to manage its storage. It is small, portable, and typically connects to a computer via a USB port. It is also known as a thumb drive or USB drive. It stores data in flash memory, which is a type of non-volatile memory that retains data even when the power is turned off. Flash drives are commonly used for storing and transferring files between computers, and for storing backup copies of important data.
Therefore, The term "thumb drive" refers to a flash memory storage device with its own processor for storage management.
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A class researching the world’s population would like to include a graph that shows historical changes. They have information from several online media resources.
Which options should they choose during their evaluation process? Check all that apply.
a teacher’s aide who creates world population materials for a class
a professor who publishes world population research in a journal
a United Nations report that analyzes trends in the world’s population
a nonprofit that tracks how the world’s population affects policy decisions
a local news program that evaluates why some countries are overpopulated
Answers
A professor who publishes world population research in a journal
Answer:
b,c,d
Explanation: i took the test and bc im awsome
i need a constant supply and i am not portable
A. desktop pc
B. smart phone
C. tablet pc
D. laptop