JS (foreach) return cannot end the function solution

js(forEach) appear return The solution to the function cannot be ended

Someone asked a question today ,return It means to end directly （ End ） Function ？ I said yes. , He asked me a question

He's here return It doesn't end the function as we think , The code continues to execute downward

I went to Du Niang to study , Found in js The function cannot be called as a whole in multiple layers return

Solution 1 ：

Let's start with a flexible method （ Throw an exception in the code area that needs to be stopped , You can stop the code ）

throw console.info(' Content ');

throw " Content ";

Solution 2 ：

stay forEach in , perform return Cannot end the entire method （forEach The traversal cannot be terminated before all elements are passed to the called function ）

Switch to for loop , perform return Can solve