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PHPのissetをJavaScriptで

Last updated at Posted at 2013-08-07

PHPのisset的なのをJSでやる為の関数。
"isset(hoge);"とかやると、true/falseが帰ってくる。

JavaScript
/**
 *	値の有無をチェック
 *	phpのisset()に相当
 *	
 *	@param	data	値
 *	@return			true / false
 *
 */
var isset = function(data){
	if(data === "" || data === null || data === undefined){
		return false;
	}else{
		return true;
	}
};
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