confirm closing tab
window.onbeforeunload = function (e) {
e = e || window.event;
// For IE and Firefox prior to version 4
if (e) {
e.returnValue = 'Sure?';
}
// For Safari
return 'Sure?';
};
Also in JavaScript:
- javascript clone date
- how to count duplicates in an array javascript
- error: Error: Unable to resolve module `crypto` from `node_modules\crypto-js\core.js`: crypto could not be found within the project.
- $.post jquery beforesend loader
- how to pad string js
- class javascript
- how to add react.memo in export list
- javascript dynamic table row add
- javascript defer
- && in react jsx
- new map js
- RFC8259 json
- jquery select input with empty value
- javascript name capitalization
- javascript string format
- function para mter js
- * http://sizzlejs.com/
- react native drawer navigation example
- Javascript format date / time
- select elements id like jquery
- javascript get Time
- remove extra space in string javascript
- javascript load content from file
- javascript redirect new window