I have a JavaScript array dataArray
which I want to push into a new array newArray
. Except I don't want newArray[0]
to be dataArray
. I want to push in all the items into the new array:
var newArray = [];
newArray.pushValues(dataArray1);
newArray.pushValues(dataArray2);
// ...
or even better:
var newArray = new Array (
dataArray1.values(),
dataArray2.values(),
// ... where values() (or something equivalent) would push the individual values into the array, rather than the array itself
);
So now the new array contains all the values of the individual data arrays. Is there some shorthand like pushValues
available so I don't have to iterate over each individual dataArray
, adding the items one by one?
Use the concat function, like so:
var arrayA = [1, 2];
var arrayB = [3, 4];
var newArray = arrayA.concat(arrayB);
The value of newArray
will be [1, 2, 3, 4]
(arrayA
and arrayB
remain unchanged; concat
creates and returns a new array for the result).