averageOfArray([3,1,2,3,5,6,7,8,9]); averageOfArray([1,2,3,5,2,1,5,6,1,10]); 使用可变参数的函数更简洁、优雅。可变参数函数具有便捷的语法,至少让调用者预先明确地知道提供了多少个参数。 如果我有这样一个数组 1 varscores=getAllScores(); 如何使用average函数计算平均值呢? 1.可变参数...
Click to get Average function calculateAverage() { // you can change the values of array let array = [28, 78, 32, 14] let i = 0 let sum = 0 let len = array.length; let result = 0 // loop for calculate sum of array values while (i < len) { sum = sum + array[i++...
。 ```javascript function calculateAverage(arr) { if (arr.length === 0) { return 0; } l...
constareAllEqual =array=>array.every(item=>item === array[0]);letcheck1 = areAllEqual([3,5,2]);// falseletcheck2 = allEqual([3,3,3]);// true 3. averageOf 求给定数字的平均值 constaverageOf =(…numbers) =>numbers.reduce((a, b) =>a + b,0) / numbers.length;letaverage =...
使用Array.from() 方法和箭头函数,我们可以生成给定范围内的数字数组。 18. 删除字符串开头和结尾的空格: consttrimString=string=>string.trim(); Trim() 方法删除字符串两端的空格。 19. 求一组数字的平均值: constaverage=array=>array.reduce((total,num)=>total+num,0)/array.length; ...
functionaverageAsync(numbers,callback){varlen=numbers.length,sum=0;if(len===0){return0;}functioncalculateSumAsync(i){if(i<len){// Put the next function call on the event loop.setTimeout(function(){sum+=numbers[i];calculateSumAsync(i+1);},0);}else{// The end of the array is rea...
In this problem, we are given an array of integers, which may contain both negative and positive numbers. We have to find the average of all the negative numbers in the array. In this article, we are going to learn how we can find the average of all negative numbers in an array...
dojo/_base/array 正如您所期望的那样,作为数组模块的一部分,有一个称为forEach()的迭代器方法,以及indexOf()和lastIndexOf()方法。现在来看最好的部分。有一个filter()方法,它返回一个根据特定条件过滤的数组。我们认为map()方法是一个宝石,因为它不仅遍历数组,还允许我们修改回调函数中的项目并返回修改后的数...
In this article, we will write a program to calculate the average of arguments in JavaScript? Using the `arguments` property, we will write a program to calculate the average of arguments in JavaScript.
a + this.b + this.c; } const o = { a: 1, b: 2, c: 3, get average() { return (this.a + this.b + this.c) / 3; }, }; Object.defineProperty(o, "sum", { get: sum, enumerable: true, configurable: true, }); console.log(o.average, o.sum); // 2 6 ...