弗雷奇。如何打破？

Posted 2021-02-23

Array.prototype.forEach
You can't break forEach. So use "some" or "every".
Array.prototype.some
some is pretty much the same as forEach but it break when the callback returns true.
Array.prototype.every
every is almost identical to some except it's expecting false to break the loop.

var ary = ["javascript", "Java", "CoffeeScript", "TypeScript"];
 
ary.some(function (value, index, _ary) {
    console.log(index + ": " + value);
    return value === "CoffeeScript";
});
// output: 
// 0: JavaScript
// 1: Java
// 2: CoffeeScript
 
ary.every(function(value, index, _ary) {
    console.log(index + ": " + value);
    return value.indexOf("Script") > -1;
});
// output:
// 0: JavaScript
// 1: Java