Useful javascript regular expression

유용한 Javascript RegEx

ref : http://ntt.cc/2008/05/10/over-10-useful-javascript-regular-expression-functions-to-improve-your-web-applications-efficiency.html

1	// Check if string is non-blank

2	var isNonblank_re    = /\S/;

3	function isNonblank (s) {

4	return String (s).search (isNonblank_re) != -1

5

}

1	// Check if string is a whole number(digits only).

2	var isWhole_re       = /^\s*\d+\s*$/;

3	function isWhole (s) {

4	return String(s).search (isWhole_re) != -1

5

}

1	// checks that an input string is an integer, with an optional +/- sign character.

2	var isInteger_re     = /^\s*(\+|-)?\d+\s*$/;

3	function isInteger (s) {

4	return String(s).search (isInteger_re) != -1

5

}

1	// Checks that an input string is a decimal number, with an optional +/- sign character.

2	var isDecimal_re     = /^\s*(\+|-)?((\d+(\.\d+)?)|(\.\d+))\s*$/;

3	function isDecimal (s) {

4	return String(s).search (isDecimal_re) != -1

5

}

1	// Check if string is currency

2	var isCurrency_re    = /^\s*(\+|-)?((\d+(\.\d\d)?)|(\.\d\d))\s*$/;

3	function isCurrency (s) {

4	return String(s).search (isCurrency_re) != -1

5

}

1	// checks that an input string looks like a valid email address.

2	var isEmail_re       = /^\s*[\w\-\+_]+(\.[\w\-\+_]+)*\@[\w\-\+_]+\.[\w\-\+_]+(\.[\w\-\+_]+)*\s*$/;

3	function isEmail (s) {

4	return String(s).search (isEmail_re) != -1;

5

}

phone number check : /^(\([0-9]{3}\)|[0-9]{3}-)([0-9]{3}|[0-9]{4})-[0-9]{4}$/.test('011-1111-2222');