I have an Json array like data {"alphaNumeric":[]}.
Here I just want to push the another array [mentioned below] of objects to this Data with out loop concept.
data{"numeric":[{"id":"1","alpha":"a"},{"id":"2","alpha":"b"}]}.
I used the below code :
data.alphaNumeric.push(data.numeric);
but the output is :
data{"alphaNumeric":[[{"id":"1","alpha":"a"},{"id":"2","alpha":"b"}]]}.
Expected :
data{"alphaNumeric":[{"id":"1","alpha":"a"},{"id":"2","alpha":"b"}]}.
Help me to resolve.
One solution may be using the concat method. Which isn't really good as it creates a whole new array.
b.alphaNumeric = b.alphaNumeric.concat(a.numeric);
But there is a much better solution using push. It accepts more than just one element, but unfortunately not as an array. This can be however achieved using its apply method:
b.alphaNumeric.push.apply(b.alphaNumeric, a.numeric);
Also you can write your own method (I call it add) which will do this action for you:
Array.prototype.add = function (array) {
this.push.apply(this, array);
return this;
};
b.alphaNumeric.add(a.numeric);
Use concat()
data.alphaNumeric.concat(data.numeric);
.push() and .pop() are for adding and removing single elements in an array. The return value from .concat() is what you're looking for:
var newArr = oldArr.concat(extraArr);
