中断_.each循环

Question

How to break _.each() loop? Tried with _.every(), it is looping through the data only once.

Sample code:

    _.each([1,2,3,4,5],function(num){ 
       if(num < 3)
          console.log(num)
       else{
          console.log(num);
          return false;
       }
   });

Output: 1 2 3 4 5

    _.every([1,2,3,4,5],function(num){ 
       if(num < 3)
          console.log(num)
       else{
          console.log(num);
          return false;
       }
   });

Output: 1 false

Answer 1

You cannot escape from the functional forEach loop.

Consider using a regular for loop instead.

const arr = [1,2,3,4,5];

for (let i = 0; i < arr.length; ++i) {
    const num = arr[i];
    if(num < 3) {
       console.log(num)
    } else {
       console.log('break out');
       break;
    }
}