JS Snippets

These are helpful javascript examples

Add Focus To Form Element

Will set cursor or focus to form element with id 'x'.

Add Leading Zero

Adds a leading 0 to a number

Email Validation

Returns true or false

Number Validation

Will disallow a non-numeric character into an input box. Example below:

<input type="text" id="number" name="number" maxlength="2" onkeydown="return isNumber(event);" />

Pass Array To PHP

Returns [[1,2,3,5],[],[16,15],[18,19,20,21,11],[23,24],[]]

Password Validation

Returns error string or blank

Phone Validation

Returns true or false

Random Number

Returns number between min 'x' & max 'y'.