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The comparison of every() and some() in JS uses a power storage plan
2022-07-05 09:48:00 【Third shopkeeper 666】
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
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