How to append something to an array?

How do I append to an array in JavaScript?


Solution:

Use the push() function to append to an array:
// initialize array
var arr = [
    "Hi",
    "Hello",
    "Bonjour"
];

// append new value to the array
arr.push("Hola");
Now array is
var arr = [
    "Hi",
    "Hello",
    "Bonjour",
    "Hola"
];
// append multiple values to the array
arr.push("Salut", "Hey");
Now array is
var arr = [
    "Hi",
    "Hello",
    "Bonjour",
    "Hola",
    "Salut",
    "Hey"
];
// display all values
for (var i = 0; i < arr.length; i++) {
    console.log(arr[i]);
}
Will print:
Hi
Hello
Bonjour
Hola 
Salut
Hey
Update
If you want to add the items of one array to another array, you can use Array.concat():
var arr = [
    "apple",
    "banana",
    "cherry"
];

arr = arr.concat([
    "dragonfruit",
    "elderberry",
    "fig"
]);

console.log(arr);

Will print
["apple", "banana", "cherry", "dragonfruit", "elderberry", "fig"]


http://stackoverflow.com/questions/351409/how-to-append-something-to-an-array

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