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What is Type-safe?
...5"), and it is expecting an integer.
In a loosely typed language, such as javascript, I can do the following:
function AddTwoNumbers(a, b)
{
return a + b;
}
if I call it like this:
Sum = AddTwoNumbers(5, "5");
Javascript automaticly converts the 5 to a string, and returns "55". This is du...
How to extract extension from filename string in Javascript? [duplicate]
...d, you'll need to use an (gasp!) if statement. Also, if using node.js with JavaScript, see the "path" built-in module.
– Jon Watte
Jul 19 '11 at 3:14
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how to debug the js in jsfiddle
...ine that is not the problem , I just want to know how to debug through the javascript. I tried to use the debugger command and I cant find it in the sources tab?
any idea how I can debug this?
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Is there a “not in” operator in JavaScript for checking object properties?
Is there any sort of "not in" operator in JavaScript to check if a property does not exist in an object? I couldn’t find anything about this around Google or Stack Overflow. Here’s a small snippet of code I’m working on where I need this kind of functionality:
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Getting a random value from a JavaScript array
...rray is an access operation as described in Why does [5,6,8,7][1,2] = 8 in JavaScript?
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how to stop browser back button using javascript
...to prevent browser's default history back action for backspace button with JavaScript?
You can-not actually disable browser back button. However you can do magic using your logic to prevent user from navigating back which will create an impression like it is disabled. Here is how, check out the fo...
Testing the type of a DOM element in JavaScript
Is there a way to test the type of an element in JavaScript?
7 Answers
7
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How to disable an input type=text?
I want to disable writing in an input field of type text using JavaScript, if possible.
The input field is populated from a database; that is why I don't want the user to modify its value.
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++someVariable vs. someVariable++ in JavaScript
In JavaScript you can use ++ operator before ( pre-increment ) or after the variable name ( post-increment ). What, if any, are the differences between these ways of incrementing a variable?
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Most efficient way to concatenate strings in JavaScript?
In JavaScript, I have a loop that has many iterations, and in each iteration, I am creating a huge string with many += operators. Is there a more efficient way to create a string? I was thinking about creating a dynamic array where I keep adding strings to it and then do a join. Can anyone explain...