JavaScript

JavaScript and corresponding frameworks such as jQuery are nowadays an indispensable part of Internet pages. Only the functionality brought by JavaScript enables dynamic websites and Ajax.

This portal is all about the topic JavaScript.

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JavaScript: How to reset array's protoype in JavaScript ?

Array.prototype.min = function() { return Math.min.apply(Math,this); }; How to reset...

Open Question | 1 Answer

JavaScript: Change Page Title

How can I change the title of an HTML page with JavaScript? Is that possible? I would like to customize the existing title (title...

Question | 1 Answer

jQuery: Change the Title of an HTML Page

How can I change the page title of an HTML page with the help of jQuery, even after loading the page? Is that...

Question | 1 Answer

jQuery: Set the width of an element in percent

I would like to change the width of some elements with jQuery. The information should be provided in percent, so I would like to...

Question | 2 Answers

jQuery: Check if an element is invisible

Using the functions .hide(), .show(), and .toggle(), I can easily change the visibility of items with jQuery. But how can I...

Question | 2 Answers

jQuery: Show and hide elements

In this tutorial, I'd like to show you how to make a visible HTML element disappear or make an invisible one visible again with...

Tutorial | 0 Comments

New Answers and Comments

Compi: First of all, I would never override any of the default function. If you cannot prevent this, for example because of an external...

Question | JavaScript: How to reset array's protoype in JavaScript ?

Progger99: Of course, you are right. It must be strold like in the second example, I have corrected that in my article. Thanks for reporting...

Tip | JavaScript: Remove last character from string

Guest: Hello, var strnew = strold.substr(0, strnew.length-1); this can't work: strnew is...

Tip | JavaScript: Remove last character from string

Guest: I don't know what you mean with "in my code". Where are those images? So, I can only guess what to do: Maybe a loop iterating over...

Tutorial | How to resize Image before Upload in Browser

Guest: I have multiple separated images in my code, how can i upload these multiple image files separate without using one field for...

Tutorial | How to resize Image before Upload in Browser

Guest: I have a looping input type file. How I should implement the javascript function as an...

Tutorial | How to resize Image before Upload in Browser

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