Check first character of a string - JavaScript Snipplr Social Repository

Revision: 17345

at September 1, 2009 11:46 by NyX

Initial Code

function isLetter($a) {
	$inta=$a.charCodeAt('0');
	if($inta>=97&&$inta<=122)
		return true;
	return false;
}

function isNumber($a) {
	$inta=$a.charCodeAt('0');
	if($inta>=48&&$inta<=57)
		return true;
	return false;
}

function isDot($a) {
	if($a.charCodeAt('0')==46)
		return true;
	return false;
}

function isArond($a) {
	if($a.charCodeAt('0')==64)
		return true;
	return false;
}

function isUnderscore($a) {
	if($a.charCodeAt('0')==95)
		return true;
	return false;
}

Initial URL

Initial Description

Checks if the first char of a string is a : letter, number, dot ( . ), arond ( @ ), underscore ( _ ).

Initial Title

Check first character of a string

Initial Tags

Initial Language

JavaScript

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