The findIndex() method returns the index of the element that satisfies a testing function or -1 if no element passed the test. ... <看更多>

Performance difference between array.find vs array.indexOf. Result: indexOf is faster ;) - performanceTest1a.js. ... <看更多>

You can use the findIndex() method on Arrays in Javascript to search through an array and find the index of ... ... <看更多>

Array数组的indexOf、includes vs for-loop性能比较最近遇到一道算法题，然后有些人会使用includes、indexOf 去判断是否存在另一个数。 ... <看更多>

You need all three components ( data , where , and what ), whereas a object usually means each part is optional. ... <看更多>