//判斷對象是否為空

//console.log(isEmptyObject()); //true

//console.log(isEmptyObject({})); //true

//console.log(isEmptyObject(null)); //true

//console.log(isEmptyObject(23)); //true

//console.log(isEmptyObject({"te": 2})); //false

function isEmptyObject(e) {

var t;

for (t in e){

return !1;

}

return !0

}

//判斷字符串是否為空

function isEmptyStr(str){

if(str == null || str == ‘null‘ || str == undefined || str == ‘undefined‘ || str.match(/^[\s]*$/)){

return true;

}else{

return false;

}

}

本文出自 “shihou” 博客，謝絕轉載！

javascript 判斷對象是否為空，字符串是否為空