javascriptBasic/12_window.html at master · YoungjuneKim/javascriptBasic · GitHub

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<!DOCTYPE html>
<html lang="ko">
<head>
    <meta charset="UTF-8">
    <title>HTML Intro</title>
</head>

<script>
//Boolean, Number, String, Array, Object 5가지타입
/**
window
    window.location
    window.history
    window.screen
    window.navigarot
    window.document
        window.document.body
        window.document.img
        window.document.form
            window.document.form.input

**/

var x =3 ;
var y =4 ;
window.alert(x+y) ; //window 생략가능

var a,b;
a = window.prompt("input a ", 0) ; //0 default value
b = prompt("input b ", 0) ;
console.log(a+b) ;  //Stirng
console.log(parseInt(a)+parseInt(b)) ;

var c = parseInt("abc") ; // Returns NaN
console.log("c : ", c) ;
var d = parseInt("12abc") ; // Returns 12
console.log("d : ", d) ;

var answer = confirm("정말로 삭제하겠습니까?") ;
if(answer) {
  alert("삭제됨") ;
}

</script>

<body>
    <h1>https://developer.mozilla.org</h1>
    <h1>여러분을 환영합니다!!</h1>
</body>
</html>