標籤：doc htm set title parse tle har rip typeof
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>轉換</title>
<script>
//stringify:把一個對象轉換成對應的字串
// var arr = [1,2,3,4]
// alert(typeof arr)
// alert(JSON.stringify(arr))
// alert(typeof JSON.stringify(arr))
// var j={left:100}
// alert(typeof j)
// alert(JSON.stringify(j))
// alert(typeof JSON.stringify(j))
//parse:把字串轉換成對應的對象
// var s1="[1,2,3,4,5]";
// alert(typeof s1)
// alert(JSON.parse(s1))
// alert(typeof JSON.parse(s1))
var s2=‘{"left":100}‘
alert(typeof s2)
alert(JSON.parse(s2))
alert(typeof JSON.parse(s2))
</script>
</head>
<body>
</body>
</html>
json 裡的stringify parse的方法
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