Discussion on the function abandoned by jQuery and its substitution function

Earlier, es1EN-1.7.2 was used for better browser compatibility. But with the rapid development of browsers and technologies, even the new version of bootstrap needs to introduce the version of jQuery-1.9 or above, which means that the commonly used ES4en-1.7.2 should leave the stage of history.

But some of the functions that we use a lot have been dropped; Do not pay attention to the words will be all kinds of error; Let's take a look at some of these discarded functions; And of course if you don't know these abandoned functions that are introduced; So you don't have to memorize it, you just have to understand the substitution; The point of this article is to remind dear friends which functions are deprecated and which should be replaced; As for the specific use of the replacement function please Google Baidu bar.

1: Deprecated function:.live ()

Abandoned version: jQuery-1.9 or above

Substitution function:.on ()

2: Deprecated function:.die ()

Abandoned version: jQuery-1.9 or above

Substitution function:.off ()

3: Deprecated function:.size ()

Abandoned version: jQuery-1.8 or above

Substitute function:.length

4: Deprecated function:.toggle ()

Abandoned version: jQuery-1.8 or above

Substitute function:...

It's a good idea to leave this function at the end of this article, because there's no official replacement, but nothing can stop a smart programmer;

If you are toggling the css style, use.toggleClass ();

If you want to switch events; You can use the following custom functions;

var i=0;
$('#test').click(function(){
if(i==0){
// Execute method content 
i=1;
}else{
// Execute method content 
i=0;
}
}

This is the end of this article, I hope you enjoy it.