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WARNING: Can't verify CSRF token authenticity rails
...; to print out the token directly in your rails code. You dont need to use javascript to search the dom for the csrf token as other posts mention. just add the headers option as below;
$.ajax({
type: 'post',
data: $(this).sortable('serialize'),
headers: {
'X-CSRF-Token': '<%= form_auth...
JQuery to check for duplicate ids in a DOM
...aster, and you can copy it to a bookmark button to make it a bookmarklet.
javascript:(function () {
var ids = {};
var found = false;
$('[id]').each(function() {
if (this.id && ids[this.id]) {
found = true;
console.warn('Duplicate ID #'+this.id);
}
ids[this.id] ...
All falsey values in JavaScript
What are the values in JavaScript that are 'falsey' , meaning that they evaluate as false in expressions like if(value) , value ? and !value ?
...
How to check in Javascript if one element is contained within another
How can I check if one DOM element is a child of another DOM element? Are there any built in methods for this? For example, something like:
...
What does jQuery.fn mean?
...
@E.E.33 If I'm not mistaken, the global scope in javascript simply means that your variable is a parameter of the window object.
– Shawn
Sep 20 '12 at 17:53
...
jQuery.parseJSON throws “Invalid JSON” error due to escaped single quote in JSON
...es within strings. However, during his discussion of JSON in Appendix E of JavaScript: The Good Parts, he writes:
JSON's design goals were to be minimal, portable, textual, and a subset of JavaScript. The less we need to agree on in order to interoperate, the more easily we can interoperate.
S...
What's a simple way to get a text input popup dialog box on an iPhone
...ard supported in the iOS API. You will not need a private API for this.
UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"Alert" message:@"This is an example alert!" delegate:self cancelButtonTitle:@"Hide" otherButtonTitles:nil];
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
[aler...
Calculate last day of month in JavaScript
...ms to work perfectly well. Out of curiosity, what are you using to run the javascript on all these engines? Got everything set-up or some kind of tool?
– neonski
Oct 21 '08 at 17:04
...
How to play a notification sound on websites?
...Ion.Sound
Basic Demo
Advanced Demo
Ion.Sound GitHub Page
Advantages:
JavaScript-plugin for playing sounds based on Web Audio API with fallback to HTML5 Audio.
Plugin is working on most popular desktop and mobile browsers and can be used everywhere, from common web sites to browser games.
Audio...
Why does (“foo” === new String(“foo”)) evaluate to false in JavaScript?
...n you try to access a property of a primitive (using it as an object), the Javascript language will box it to an object, creating a new object every time. This is described in the specification.
This is why you cannot put properties on primitives:
var x = "a";
x.property = 2;
alert(x.property) //...