Random Number javascript

function GetRandomNum(Min,Max)
{
var Range = Max - Min;
var Rand = Math.random();
return(Min + Math.round(Rand * Range));
}
var num = GetRandomNum(10000,999999);
alert(num);

Làm phẳng mảng dùng phương pháp đệ quy

using javascript callback style error handling

encode/decode base64 with JS

Encoding to base64 is done with the btoa command

Object.keys và Object.getOwnPropertyNames

Rest Operator for Objects

Now we can use rest on the properties of an Object. It allows us to explicitly extract certain named variables, and assign any uncalled variables into a catchall Object.