JS copies all object s attributes to object r (native js + jquery) _ javascript skills

This article mainly introduces how to copy the attributes of all object s to object r in js. Native js + jquery implements native writing:

The Code is as follows:

/**
* Copy all s attributes to r
* @ Param r {Object}
* @ Param s {Object}
* @ Param is_overwrite {Boolean} if it is set to false, the existing value is not overwritten. Other values
* Undefined indicates that the attributes with the same name in s will overwrite the values in r.
*/
Mix: function (r, s, is_overwrite) {// TODO:
If (! S |! R) return r;

For (var p in s ){
If (is_overwrite! = False |! (P in r )){
R [p] = s [p];
}
}
Return r;
}

JQuery is easy to write.

The Code is as follows:

Var a = {
Aa: 1,
AB: 2
};
Var B = {
Ba: 1,
Bb: 2
};

$. Extend (a, B );
Console.info ();