array.findIndex(function(currentValue,index,arr),thisValue); 例①: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 constmyArr=[{id:1,Name:"张三"},{id:2,Name:"李四"},{id:3,Name:"王五"},{id:4,Name:"赵六"}];vari0=myArr.findIndex((value)=>value.id==1);console.log(i0);va...
functionisBigEnough(element){returnelement>=15;}[12,5,8,130,44].findIndex(isBigEnough);// index of 4th element in the Array is returned,// so this will result in '3' 另请参见find()方法,它返回数组中找到的元素的值,而不是其索引。
The index of first peak element in the array is: 3 The task is to write a C program that finds the index of the first peak element in a given array. A peak element is defined as an element that is greater than its neighbors. The program should traverse the array, identify the first...
functionisBigEnough(element) { returnelement >= 15; } [12, 5, 8, 130, 44].find(isBigEnough);// 130 另请参见findIndex()方法,它返回数组中找到的元素的索引,而不是其值。 如果你需要找到一个元素的位置或者一个元素是否存在于数组中,使用Array.prototype.indexOf()或Array.prototype.includes()。
Example: Largest Element in an array #include <stdio.h> int main() { int n; double arr[100]; printf("Enter the number of elements (1 to 100): "); scanf("%d", &n); for (int i = 0; i < n; ++i) { printf("Enter number%d: ", i + 1); scanf("%lf", &arr[i]); }...
a.forEach(function(element) {console.log(element); }); a._forEach(function(element) {console.log(element); }); //a //b //c 测试2: functionlogArrayElements(element, index, array) {console.log("a["+ index +"] = "+ element); ...
findIndex(function(a) {return a > 9;}) // 2LicenseThe MIT License (MIT)Copyright (c) 2013 Paul Miller http://paulmillr.comPermission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in ...
You are given an integer array nums, an integer array queries, and an integer x.For each queries[i], you need to find the index of the queries[i]th occurrence of x in the nums array. If there are fewer than queries[i] occurrences of x, the answer should
Array Find Methods: MethodFinds indexOf()The index of the first element with a specified value lastIndexOf()The index of the last element with a specified value find()The value of the first element that passes a test findIndex()The index of the first element that passes a test ...
of the array. It finds the element at position 5. Finally, theFindIndex<T>(T[], Int32, Int32, Predicate<T>)method overload is used to search the range of three elements beginning at position 2. It returns -1 because there are no dinosaur names in that range that end with "saurus...