The comparison of every() and some() in JS uses a power storage plan

Preface

In front end development , Iterative processing of arrays is also a common operation . stay JavaScript There are two common iterative methods in arrays ：every() and some(), Both functions are in the JS Iterate on arrays in . Then let's make a detailed comparison every() and some() Use .

One 、every()

1.1、every grammar

Basic grammar ：arr.every(callback(element[, index[, array]])[, thisArg]);

Parameter Introduction ：

1.2、every Definition

every() Method is used to detect whether all elements in an array pass the test of a specified function . What it returns is a bool value .

matters needing attention ： If you receive an empty array , This method returns in all cases true. If every return of the callback function is truthy value , return