Introduction to the usage of JavaScript high-order functions

This article brings you an introduction to the usage of JavaScript high-order functions. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

Higher-order functions are functions that can pass functions as parameters

Ideas:

1. Pass parameters and a processing function to the high-order function
2 , the processing function processes each parameter

Usage scenario:
Want to get the squared array of each number in the array

var process = function (array, processor) {
  var l = []
  for (var i = 0; i <p><img src="https://img.php.cn/upload/image/323/417/101/1554169787559731.png" title="1554169787559731.png" alt="Introduction to the usage of JavaScript high-order functions"></p>## [Related recommendations: <p>JavaScript video tutorial<a href="//m.sbmmt.com/course/list/17.html" target="_blank">]</a></p><p></p>

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