Array with a forEach loop that can be broken out of.

breakable-for-each.js

class BreakableArray extends Array  {
    forEach(callbackFn, thisArg) {
        let index = 0;
        while(index < this.length) {
            let _break = false;
            
            callbackFn.call(thisArg, this[i], index, this, () => _break = true);
            
            if(_break) {
                break;
            }
          
            ++index;
        }
    }
}