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Detect all Firefox versions in JS
How to detect Firefox in JavaScript?
I want to detect all versions of Firefox.
7 Answers
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Call js-function using JQuery timer
...this:
window.setInterval(yourfunction, 10000);
function yourfunction() { alert('test'); }
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How can I capture the right-click event in JavaScript? [duplicate]
... oncontextmenu event.
Here's an example:
<div oncontextmenu="javascript:alert('success!');return false;">
Lorem Ipsum
</div>
And using event listeners (credit to rampion from a comment in 2011):
el.addEventListener('contextmenu', function(ev) {
ev.preventDefault();
alert('su...
Create Directory When Writing To File In Node.js
I've been tinkering with Node.js and found a little problem. I've got a script which resides in a directory called data . I want the script to write some data to a file in a subdirectory within the data subdirectory. However I am getting the following error:
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What does it mean when an HTTP request returns status code 0?
What does it mean when JavaScript network calls such as fetch or XMLHttpRequest, or any other type of HTTP network request, fail with an HTTP status code of 0?
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Select all elements with “data-” attribute without using jQuery
Using only JavaScript, what is the most efficient way to select all DOM elements that have a certain data- attribute (let's say data-foo ). The elements may be different tag elements.
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Detecting an undefined object property
...ty is the special value undefined, is:
if(o.myProperty === undefined) {
alert("myProperty value is the special value `undefined`");
}
To check if an object does not actually have such a property, and will therefore return undefined by default when you try and access it:
if(!o.hasOwnProperty('m...
How to get visitor's location (i.e. country) using geolocation? [duplicate]
...rvice will know. or you write service yourself, but that's out of pure javascript scope.
– tishma
Nov 7 '14 at 22:56
1
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Create, read, and erase cookies with jQuery [duplicate]
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Use JavaScript Cookie plugin
Set a cookie
Cookies.set("example", "foo"); // Sample 1
Cookies.set("example", "foo", { expires: 7 }); // Sample 2
Cookies.set("example", "foo", { path: '/admin', expires: 7 }); // Sample 3
Get a cookie
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How to inherit from a class in javascript?
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In JavaScript you don't have classes but you can get inheritance and behavior reuse in many ways:
Pseudo-classical inheritance (through prototyping):
function Super () {
this.member1 = 'superMember1';
}
Super.prototype.member2 =...