JS copies all object s attributes to object r

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

Native Syntax: the code is as follows: /*** copy all s attributes to r * @ param r {Object} * @ param s {Object} * @ param is_overwrite {Boolean}. If this parameter is specified as false, the existing value is not overwritten. Other values * Including undefined indicate that the attributes with the same name in s will overwrite the values */mix: function (r, s, is_overwrite) in r) {// TODO: if (! S |! R) return r; for (var p in s) {if (is_overwrite! = False |! (P in r) {r [p] = s [p] ;}} return r;} If jQuery is written, it is too convenient to copy the Code as follows: var a = {aa: 1, AB: 2}; var B = {ba: 1, bb: 2}; $. extend (a, B); console.info ();