array get index
indexOf() 方法會回傳給定元素於陣列中第一個被找到之索引，若不存在於陣列中則回傳-1。,int keyIndex = Array.FindIndex(words, w => w.IsKey);. That actually gets you the integer index and not the object, regardless of what custom class you have ...
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 array get index 相關參考資料
Array.prototype.findIndex() - MDN - Mozilla
另請參見 find() 方法，它返回陣列中找到的元素的值，而不是其索引。 ... 回傳值. An index in the array if an element passes the test; otherwise, -1. https://developer.mozilla.org Array.prototype.indexOf() - MDN - Mozilla
indexOf() 方法會回傳給定元素於陣列中第一個被找到之索引，若不存在於陣列中則回傳-1。 https://developer.mozilla.org Find index of a value in an array - Stack Overflow
int keyIndex = Array.FindIndex(words, w => w.IsKey);. That actually gets you the integer index and not the object, regardless of what custom class you have ... https://stackoverflow.com Find the index of an array element in Java - GeeksforGeeks
Given an array of N elements and an element K, find the index of an array element in Java. Examples: Input: a[] = 5, 4, 6, 1, 3, 2, 7, 8, 9 }, K = 5 Output: 0 Input: ... https://www.geeksforgeeks.org Get the index value of an array in PHP - Stack Overflow
You could loop over the array manually and find the index but why do it when there's a function for that. This function always returns a key and it will work well ... https://stackoverflow.com Getting the index of a particular item in array - Stack Overflow
Edit: I see you have an array of string, you can use any code to match, here an example with a simple ... This will return the index of the first item containing "xyz". https://stackoverflow.com How to find the array index with a value? - Stack Overflow
you can use indexOf : var imageList = [100,200,300,400,500]; var index = imageList.indexOf(200); // 1. you will get -1 if it cant find a value in the array. https://stackoverflow.com How to find the index of an element in an int array? - Stack Overflow
You can either walk through the array until you find the index you're looking for, or use a List instead. Note that you can transform the array into a list with asList() ... https://stackoverflow.com IndexOf(Array, Object - Microsoft Docs
搜尋指定的物件，並傳回其在一維陣列或陣列中某個項目範圍內第一次出現的索引。Searches for the specified object and returns the index of its first occurrence in a ... https://docs.microsoft.com JavaScript Array indexOf() Method - W3Schools
More "Try it Yourself" examples below. Definition and Usage. The indexOf() method searches the array for the specified item, and returns its position. The search ... https://www.w3schools.com |