The jquery $ (document) .ready (function () {}) and $ (window) .load () Comparative

1. execution time 
window.onload () to perform after that is written in jquery $ (window) .load (function ( ) {}) must wait until all the elements within the page, including images loaded. 
$ (document) .ready () is executed after the DOM structure of the drawing is completed, without waiting to load. 
2. Write the number of the different 
window.onload can not write more, if there are multiple window.onload method will only execute a (last)
$ (the Document) .ready () can write multiple simultaneously, and can get performing 
3. simplified written 
window.onload does not simplify writing 
$ (document) .ready (function ( ) {}) can be abbreviated to $ (function () {}
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