adamharder/javascript_notes.md

Last active April 13, 2016 19:13

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javascript_notes.md

Append an array

// initialize array
var arr = [
    "Hi",
    "Hello",
    "Bonjour"
];

// append new value to the array
arr.push("Hola");

// append multiple values to the array
arr.push("Salut", "Hey");

Get the length of an object

x={1:2, 3:4, 5:6}

python
len(x) -> 3

js
Object.keys(x).length  -> 3

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