"Return" out of Function, If Statement Inside Lodash forEach()

Question

function(){
    _.forEach(listOfSomething, function (something) {
      if(someCondition){
        return false
      }
    });
    return true;
}

Looks simple enough - trying to check each item for some condition, if it isn't met for any item exit out of function and return false. When loop is done without exiting, return true.

Always returns true, tried console logging, and it does hit the "return false" point.

Am I missing something obvious about how js works or is this a lodash thing?

Answer 1

What you're missing is that your return false statement is inside a different function than your return true statement. You probably want to use a different lodash method like any/some.

function(){
    return _.some(listOfSomething, function (something) {
      return someCondition;
    });
}

Answer 2

Thats because there are 2 functions, the return of the second function won't make the first function return. You should set a variable as true and change it to false if the condition is met:

function(){
    var condition = true;
    _.forEach(listOfSomething, function (something) {
      if(someCondition){
        condition = false;
        return;
      }
    });
    return condition;
}