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What’s a quick way to append a value to an array?
What’s a quick way to append a value to an array? arr[arr.length] = value; 2010-12-28, 4068👍, 0💬

How tp create Arrays using JavaScript??
How tp create Arrays using JavaScript?? &lt;script type="text/javascript"> var days = new Array(); days[0] = "Sunday" days[1] = "Monday" days[2] = "Tuesday" days[3] = "Wednesday" days[4] = "Thursday" days[5] = "Friday" days[6] = "Saturday" document.write("first day is "+days[0]) &lt;/script>... 2011-07-12, 4067👍, 0💬

What is the difference between undefined value and null value?
What is the difference between undefined value and null value? 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 2011-01-18, 4063👍, 0💬

What does the term sticky session mean in a web-farm scenario?
What does the term sticky session mean in a web-farm scenario? Why would you use a sticky session? What is the potential disadvantage of using a sticky session? Sticky session refers to the feature of many commercial load balancing solutions for web-farms to route the requests for a particular sessi... 2011-01-04, 4051👍, 0💬

What is a fixed-width table and its advantages?
What is a fixed-width table and its advantages? Fixed width tables are rendered by the browser based on the widths of the columns in the first row, resulting in a faster display in case of large tables. Use the CSS style table-layout:fixed to specify a fixed width table. If the table is not specifie... 2010-07-06, 4045👍, 0💬

How to create a confirmation box?
How to create a confirmation box? confirm("Do you really want to launch the missile?"); 2011-03-08, 4038👍, 0💬

Is a JavaScript script faster than an ASP script?
Is a JavaScript script faster than an ASP script? Yes. Since JavaScript is a client-side script it does not require the web server's help for its computation, so it is always faster than any server-side script like ASP, JSP, PHP, etc.. 2010-08-31, 4026👍, 0💬

How to shift and unshift using JavaScript?
How to shift and unshift using JavaScript? &lt;script type="text/javascript"> var numbers = ["one", "two", "three", "four"]; numbers.unshift("zero"); document.write(" "+numbers.shift()); document.write(" "+numbers.shift()); document.write(" "+numbers.shift()); &lt;/script> This produces zero... 2011-08-02, 4024👍, 0💬

Name the numeric constants representing max, min values
Name the numeric constants representing max, min values Number.MAX_VALUE Number.MIN_VALUE 2010-12-14, 4019👍, 0💬

How do you create a new object in JavaScript?
How do you create a new object in JavaScript? var obj = new Object(); or var obj = {}; 2010-12-21, 4010👍, 0💬

What boolean operators does JavaScript support?
What boolean operators does JavaScript support? &amp;&amp;, || and ! 2010-09-28, 4010👍, 0💬

What and where are the best JavaScript resources on the Web?
What and where are the best JavaScript resources on the Web? The Web has several FAQ areas on JavaScript. The best place to start is the w3schools.com website. For interactive help with specific problems, nothing beats the primary JavaScript Usenet newsgroup, comp.lang.javascript. Depending on my wo... 2010-09-21, 4009👍, 0💬

Are Java and JavaScript the Same?
Are Java and JavaScript the Same? No. java and JavaScript are two different languages. Java is a powerful object - oriented programming language like C++ and C, whereas Javascript is a client-side scripting language. 2010-09-14, 3999👍, 0💬

How can JavaScript be used to improve the "look and feel" of a Web site? By the same token, how can JavaScript be used to improv
How can JavaScript be used to improve the "look and feel" of a Web site? By the same token, how can JavaScript be used to improve the user interface? On their own, Web pages tend to be lifeless and flat unless you add animated images or more bandwidth-intensive content such as Java applets or other ... 2010-06-15, 3999👍, 0💬

How to use "join()" to create a string from an array using JavaScript?
How to use "join()" to create a string from an array using JavaScript? "join" concatenates the array elements with a specified seperator between them. &lt;script type="text/javascript"> var days = ["Sunday","Monday","Tuesday"," Wednesday","Thursday","Friday","Saturday" ];document.write("days:"+d... 2011-07-26, 3957👍, 0💬

How to set a HTML document's background color?
How to set a HTML document's background color? document.bgcolor property can be set to any appropriate color. 2010-07-27, 3952👍, 0💬

How to have the status line update when the mouse goes over a link?
How to have the status line update when the mouse goes over a link? &lt;a href="javascript.shtml" onmouseover="window.status='Hi There!';return true" onmouseout="window.status='';r eturntrue">Look at the Status bar&lt;/a> Look at the Status bar as your cursor goes over the link. 2011-03-01, 3946👍, 0💬

Are you concerned that older browsers don't support JavaScript and thus exclude a set of Web users?
Are you concerned that older browsers don't support JavaScript and thus exclude a set of Web users? Fragmentation of the installed base of browsers will only get worse. By definition, it can never improve unless absolutely everyone on the planet threw away their old browsers and upgraded to the late... 2010-08-03, 3942👍, 0💬

How can JavaScript make a Web site easier to use?
How can JavaScript make a Web site easier to use? That is, are there certain JavaScript techniques that make it easier for people to use a Web site? JavaScript's greatest potential gift to a Web site is that scripts can make the page more immediately interactive, that is, interactive without having ... 2010-06-08, 3940👍, 0💬

How do you target a specific frame from a hyperlink?
How do you target a specific frame from a hyperlink? Include the name of the frame in the target attribute of the hyperlink. &lt;a href=”mypage.htm” target=”BodyFrame”>>Next&l t;/a> 2010-07-06, 3936👍, 0💬

How to select an element by id and swapping an image?
How to select an element by id and swapping an image? ... &lt;script language="JavaScript" type="text/javascript" > function setBeerIcon() { var beerIcon = document.getElementById("beerI con");beerIcon.src = "images/"+getSelectValue("beer ")+".jpg";} &lt;/script> ... &lt;img border="0" s... 2011-01-11, 3926👍, 0💬

How to use strings as array indexes using JavaScript?
How to use strings as array indexes using JavaScript? Javascript does not have a true hashtable object, but through its wierdness, you can use the array as a hashtable. &lt;script type="text/javascript"> var days = ["Sunday","Monday","Tuesday"," Wednesday","Thursday","Friday","Saturday" ];for(va... 2011-07-19, 3920👍, 0💬

What is "this" keyword?
What is "this" keyword? It refers to the current object. 2010-12-28, 3919👍, 0💬

You have an ASP.NET web application running on a web-farm that does not use sticky sessions - so the requests for a session are
You have an ASP.NET web application running on a web-farm that does not use sticky sessions - so the requests for a session are not guaranteed to be served the same machine. Occasionally, the users get error message Validation of viewstate MAC failed. What could be one reason that is causing this er... 2011-01-04, 3904👍, 0💬

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.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML