[Conversion] JS - null 타입변환 - (숫자: 0 , 문자열: "null" , 참거짓: false)

null 타입변환

 

<p id="demo"></p>

<script>

var x = null;

document.getElementById("demo").innerHTML =

"Number : " + Number(x) + "<br>" +

"String : " + String(x) + "<br>" +

"Boolean: " + Boolean(x);

</script>

 

결과보기

결과값:

Number : 0

String : null

Boolean: false