Html Css Javascript Interview Questions And Answers Pdf

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html css javascript interview questions and answers pdf

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In this section you can find interview questions and answers for basic of web development tools.

Javascript is a scripting language supports scripts for Web pages but it is also used in non-browser environments as well. It is a powerful, lightweight, interpreted, scripting language with first-class functions i. That's the reason why it is widely used for the behavior of the web pages.

HTML Interview Questions

In this section you can find interview questions and answers for basic of web development tools. It is the fifth and current major version of the HTML standard. Semantics: allowing you to describe more precisely what your content is. Connectivity: allowing you to communicate with the server in new and innovative ways. Offline and storage: allowing webpages to store data on the client-side locally and operate offline more efficiently.

Multimedia: making video and audio first-class citizens in the Open Web. Performance and integration: providing greater speed optimization and better usage of computer hardware. Device access: allowing for the usage of various input and output devices. Styling: letting authors write more sophisticated themes. A virtual root is essentially a new web site in IIS. Using the first method, you can also create a virtual root that points to a logical directory outside the current web root.

The new virtual root is largely, although not completely, as configurable as a new web site. Windows Server comes with a limited terminal services server built in for remote administration of the server.

Set it up as remote client and use the TS client or Remote Desktop Connection on the client to login. From there, use MMC as if you were logged on locally. Stay up to date on patches and keep security software AV, firewall, IDS, maybe even packet logging, etc. If possible, segregate public web machines into different ACL segments e. Be careful with security policies. Non-front tiers should have tight security policies barring anyone outside the adjacent tiers and maybe a test machine or two from access.

Non-blocking socket usage, introduced in IIS 6. More than one application can use a given socket. Use the parseInt function, that takes a string as the first parameter, and the base as a second parameter.

So to convert hexadecimal 3F to decimal, use parseInt "3F", 16 ;. In order to detect the operating system on the client machine, the navigator. This depends on the user's browser and OS. In the case of Netscape with Windows OS,all the cookies are stored in a single file called cookies. The user can be given control over the browser like User input validation Simple computations can be performed on the client's machine The user's browser, OS, screen size, etc.

The "Access Denied" error in any browser is due to the following reason. A javascript in one window or frame is tries to access another window or frame whose document's domain is different from the document containing the script. Since javascript is a client-side script it does require the web server's help for its computation,so it is always faster than any server-side script like ASP,PHP,etc..

This can be achieved by using the following tag between head tags or between body tags. An alert box displays only one button which is the OK button whereas the Confirm box displays two buttons namely OK and cancel. The null value is a unique value representing no value or no object. It implies no object, or null string,no valid Boolean value, no number and no array object. Undefined value means the variable used in the code doesnt exist or is not assigned any value or the property doesn't exist.

Undefined value cannot be explicitly stated that is there is no keyword called undefined whereas null value has keyword called null typeof undefined variable or property returns undefined whereas typeof null value returns object. Undeclared variables are those that are not declared in the program do not exist at all , trying to read their values gives runtime error. But if undeclared variables are assigned then implicit declaration is done.

Undefined variables are those that are not assigned any value but are declared in the program. Trying to read such variables gives special value called undefined value. The delete operator is used to delete all the variables and objects used in the program ,but it does not delete variables declared with var keyword.

Continue statement continues the current loop if label not specified in a new iteration whereas break statement exits the current loop. The following example illustrates this It creates a function called square with argument x and returns x multiplied by itself. Sign In. P2P programmer 2 programmer. Net and C ASP. Net and C. Features of HTML5? What is a virtual root and how do you create one? How would you remotely administer IIS? What scripts ship with IIS?

What secure authentication and encryption mechanisms are supported by IIS? On disk, as opposed to memory, as it used to be in older IIS. What is socket pooling? What are JavaScript types? How do you convert numbers between different bases in JavaScript? What boolean operators does JavaScript support? What looping structures are there in JavaScript? How do you assign object properties?

What is THIS keyword? It refers to the current object. What does isNaN function do? Return true if the argument is not a number. What is negative infinity? How to detect the operating system on the client machine? Where are cookies actually stored on the hard disk? What can javascript programs do? How to set a HTML document's background color? What does the "Access is Denied" IE error mean? Is a javascript script faster than an ASP script?

Are Java and JavaScript the Same? How to embed javascript in a web page? How to access an external javascript file that is stored externally and not embedded? What is the difference between an alert box and a confirmation box? What is a prompt box? A prompt box allows the user to enter input by providing a text box. Can javascript code be broken in different lines?

How to hide javascript code from old browsers that dont run it? How to comment javascript code? Name the numeric constants representing max,min values Number. What does javascript null mean? What does undefined value mean in javascript? What is the difference between undefined value and null value? Does javascript have the concept level scope?

What are undefined and undeclared variables? What does the delete operator do? What does break and continue statements do? How to create a function using function constructor?

JavaScript Interview Questions

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Figure HTML, CSS & Javascript are the three most basic languages to So, to conclude this paragraph, keep in mind answers to the question "What is.


Top 50 JavaScript Interview Questions You Must Prepare in 2021

Sign up for our free weekly Web Developer 11,, Newsletter. Introduction Below is the list of latest and updated JavaScript interview questions and their answers for freshers as well as experienced users. These interview questions will help you to prepare for the interviews, So let's start

HTML+Javascript Related Tutorials

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JavaScript also abbreviated as JS, is a high level server side programming language. JavaScript is widely used all over the world to build various web applications, which means there are huge opportunities available for the JavaScript programming. To build a career in JavaScript programming, candidates need to crack the interview in which they are asked for various JavaScript interview questions and answers. Following is a list of JavaScript interview questions and answers, which are likely to be asked during the interview. Candidates are likely to be asked basic JavaScript interview questions to advance level JS interview questions depending on their experience and various other factors.

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4 Comments

  1. Unesforve 13.04.2021 at 17:00

    JavaScript Interview Questions and Answers PDF file: Download Here! be inserted into HTML pages and is understood by web browsers.

  2. Faustin A. 17.04.2021 at 06:27

    HTML, CSS, JavaScript Interview Question and Answer · 1. What is HTML and HTML5? · 2. Features of HTML5? · 3. What is a virtual root and how do you create.

  3. Celerino F. 17.04.2021 at 23:13

    The way you declare which elements the styles should apply to.

  4. Claudette M. 18.04.2021 at 21:09

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