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This article mainly explains "how to use the js array forEach method", the article explains the content is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "how to use the js array forEach method" bar!

1. ForEach () is similar to map () in that it also acts each element on the incoming function in turn, but does not return a new array.

2. ForEach () is often used to traverse an array, calling each element of the array and passing it to the callback function. The transfer function does not need to return a value.

Example

Var arr=; try {arr.forEach ((item,index) = > {if (item))

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