Skip welcome & menu and move to editor
Welcome to JS Bin
Load cached copy from
 
// indexOf example
Str = "ABCDEFG";
// 找小寫 d,回傳 -1
console.log(Str.indexOf("d"));
// 找大寫 D,回傳 3
console.log(Str.indexOf("D"));
// 從第五個值找大寫 D,找不到符合值,回傳 -1
console.log(Str.indexOf("D", 5));
Output

You can jump to the latest bin by adding /latest to your URL

Dismiss x
public
Bin info
StanGCpro
0viewers