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add exists method to jquery

This commit is contained in:
Jörn Friedrich Dreyer 2013-09-16 13:47:37 +02:00
parent 46f59b165e
commit afe4f6a794
1 changed files with 10 additions and 1 deletions
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11
core/js/js.js
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@ -906,7 +906,7 @@ OC.set=function(name, value) {
* @param {type} start * @param {type} start
* @param {type} end * @param {type} end
*/ */
$.fn.selectRange = function(start, end) { jQuery.fn.selectRange = function(start, end) {
return this.each(function() { return this.each(function() {
if (this.setSelectionRange) { if (this.setSelectionRange) {
this.focus(); this.focus();
@ -921,6 +921,15 @@ $.fn.selectRange = function(start, end) {
}); });
}; };
/**
* check if an element exists.
* allows you to write if ($('#myid').exists()) to increase readability
* @link http://stackoverflow.com/questions/31044/is-there-an-exists-function-for-jquery
*/
jQuery.fn.exists = function(){
return this.length > 0;
}
/** /**
* Calls the server periodically every 15 mins to ensure that session doesnt * Calls the server periodically every 15 mins to ensure that session doesnt
* time out * time out