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Check whether variable is number or string in JavaScript
... anyone know how can I check whether a variable is a number or a string in JavaScript?
32 Answers
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Deleting Objects in JavaScript
I'm a bit confused with JavaScript's delete operator. Take the following piece of code:
11 Answers
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How to prevent caching of my Javascript file? [duplicate]
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you ALL wrong! <script type="text/javascript" src="test.js?md5=..."></script>
– Alexey Kuznetsov
Aug 8 '16 at 0:35
1
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Will console.log reduce JavaScript execution performance?
Will use of the debugging feature console.log reduce JavaScript execution performance? Will it affect the speed of script execution in production environments?
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Chrome Development Tool: [VM] file from javascript
I added a breakpoint in my javascript file (jaydata.js) and was pressing "Step over to the next function call."
When it got to a line that was:
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How to add 30 minutes to a JavaScript Date object?
...t which is 30 minutes later than another Date object. How do I do it with JavaScript?
19 Answers
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用Javascript获取页面元素的位置（全） - 更多技术 - 清泛网 - 专注C/C++及内核技术
用Javascript获取页面元素的位置（全）制作网页的过程中，你有时候需要知道某个元素在网页上的确切位置。下面的教程总结了Javascript在网页定位方面的相关知识。一、网页的大小和...制作网页的过程中，你有时候需要知道某个...
Find if variable is divisible by 2
...ch (for all the others who don't already know) is a big deal to new jQuery/Javascript developers.
– sadmicrowave
May 13 '10 at 11:54
6
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Default argument values in JavaScript functions [duplicate]
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In javascript you can call a function (even if it has parameters) without parameters.
So you can add default values like this:
function func(a, b){
if (typeof(a)==='undefined') a = 10;
if (typeof(b)==='undefined') b = 20...
Javascript / Chrome - How to copy an object from the webkit inspector as code
I am doing a console.log statement in my javascript in order to log a javascript object. I'm wondering if there's a way, once that's done - to copy that object as javascript code. What I'm trying to do is convert an object that was created using ajax to parse an xml feed into a static javascript obj...