The .indexOf() method has an optional second parameter that specifies the index to start searching from, so you can call it in a loop to ... ... <看更多>

The findIndex() executes the testFn on every element in the array until it finds the one where testFn returns a truthy value, which is a value that coerces to ... ... <看更多>

Polyfill for the The findIndex() method. returns an index in the array, ... your main.js or where you are going to plan to use the find function as follows:. ... <看更多>

Javascript Array findIndex () 方法. 針對陣列中的每個元素，執行callback，回傳 一個 符合條件的元素的 索引值 ，否則回傳 -1 ... ... <看更多>

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Dec 11, 2020 - You'll Learn Working with Javascript Array findIndex() method with examples for Beginners with finding index of items in the array. ... <看更多>