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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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