JS merge json object instance

We have shared many articles about json objects. This article mainly introduces the method of merging json objects in JS, involving related operation skills of javascript recursive calls and json format data traversal. Friends who need it can refer to it. I hope it can help everyone. .

1. Question:

How to merge json objects

var a ={"a":"1","b":"2"}
var b ={"c":"3","d":"4","e":"5"}

Want to get the result:

var c ={"a":"1","b":"2","c":"3","d":"4","e":"5"}

2. Implementation code:

##

<script>
function extend(des, src, override){
  if(src instanceof Array){
    for(var i = 0, len = src.length; i < len; i++)
       extend(des, src[i], override);
  }
  for( var i in src){
    if(override || !(i in des)){
      des[i] = src[i];
    }
  }
  return des;
}
var a ={&quot;a&quot;:&quot;1&quot;,&quot;b&quot;:&quot;2&quot;}
var b ={&quot;c&quot;:&quot;3&quot;,&quot;d&quot;:&quot;4&quot;,&quot;e&quot;:&quot;5&quot;}
var c = extend({}, [a,b]);
console.log(c);
</script>

Run results:

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