javascript goto标签如何使用内部循环

Question

for (var rows = 0; rows < 10; rows++) 
{
 [lbl] topOfLoop:   
  if (row  == 5 ) {
    goto topOfLoop;
  }else{ 
alert(row);
   } 

有没有办法在 Javascript 中做到这一点？

Answer 1

来自 label 的 MSN 文档

The labeled statement can be used with break or continue statements. It is prefixing a statement with an identifier which you can refer to.

var i, j;

loop1: for (i = 0; i < 3; i++) {       //The first for statement is labeled "loop1"
    loop2: for (j = 0; j < 3; j++) {   //The second for statement is labeled "loop2"
        if (i === 1 && j === 1) {
            continue loop1;
        }
        document.write("i = " + i + ", j = " + j + '<br>');
    }
}