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 =...
average(3,1,2,3,5,6,7,8,9); average(1,2,3,5,2,1,5,6,1,10); average函数是一个称为可变参数或可变元函数(函数的元数是指其期望的参数个数)的例子。 当然这个函数也可以写成一个接收数组的形式。 1 2 3 4 averageOfArray([1,2,3]); averageOfArray([1]); averageOfArray([3,1,2,3...
AI代码解释 functionarrMaxNum2(arr){returnMath.max.apply(null,arr);}functionarrMinNum2(arr){returnMath.min.apply(null,arr);}functionarrAverageNum2(arr){varsum=eval(arr.join("+"));return~~(sum/arr.length*100)/100;} 代码如上.果然简短了很多. Math.max.apply(null,arr)这段代码同事给我解...
This function should compute the mean value of the data array for the size limit. If the data array is larger than the size defined in the limit, you should delete items from the front of the array up until the array has only the no. of items defined by limit. Once that is done ca...
57. Average of Array with Mapping Function Write a JavaScript program to compute the average of an array, after mapping each element to a value using the provided function. Click me to see the solution 58. Split Values into Groups by Predicate ...
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...
average:平均数 even:偶数 odd:奇数 score:分数 Array:数组 new:创建 index:索引 function:函数方法 return:返回,从来 arguments:参数 reverse:反转 sort:排序 params/paramenter:参数 Object:对象 this:通过构造函数即将要创建出来的对象 Math:数学对象
averageTemp[0] = [72,75,79,79,81,81]; averageTemp[1] = [81,79,75,75,73,73]; 迭代二维数组元素 functionprintMatrix(arr) {for(leti =0; i < arr.length; i++) {for(letj =0; j < arr[i].length; j++) {console.log(arr[i][j]); ...