What does return keyword mean inside forEach function

Question

x000D   x000D     button   click function      x000D      1  2  3  4  5  forEach function  n    x000D        if  n    3    x000D              it should break out here and doesn t alert anything after x000D           return false x000D          x000D        alert n        x000D        x000D     x000D   lt script src  https   ajax googleapis com ajax libs jquery 2 1 1 jquery min js  gt  lt  script gt  x000D   lt button gt Click me lt  button gt  x000D   x000D   x000D    My question  Why does it still alert next number although I call return  Just like  Ignore the code below and continue with next element

User · Answer

The return exits the current function  but the iterations keeps on  so you get the  next  item that skips the if and alerts the 4     If you need to stop the looping  you should just use a plain for loop like so      button   click function         var arr    1  2  3  4  5      for var i   0  i  lt  arr length  i           var n   arr i         if  n    3             break                alert n              You can read more about js break  amp  continue here  http   www w3schools com js js break asp

User · Answer

From the Mozilla Developer Network      There is no way to stop or break a forEach   loop other than by throwing an exception  If you need such behavior  the forEach   method is the wrong tool       Early termination may be accomplished with          A simple loop   A for   of   loop   Array prototype every     Array prototype some     Array prototype find     Array prototype findIndex           The other Array methods  every    some    find    and findIndex   test the array elements with a predicate returning a truthy value to determine if further iteration is required

[javascript] What does `return` keyword mean inside `forEach` function?

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