if (typeof Array.prototype['max'] == 'undefined') { Array.prototype.max = function() { ... ... } } 方法二: 用Math.max和Math.min方法可以迅速得到结果。apply能让一个方法指定调用对象与传入参数,并且传入参数是以数组形式组织的。恰恰现在有一个方法叫Math.max,
functiongetMaxOfArray(numArray){returnMath.max.apply(null,numArray);} Array.reduce()也可以通过比较每个值来获得数组的最大值。 代码语言:javascript 复制 vararr=[1,2,3];varmax=arr.reduce(function(a,b){returnMath.max(a,b);}); 或者通过使用最新的扩展语句spread operator,获得数组中的最大值变得...
Javascript ArraygetMax() /**/*fromwww.java2s.com*/* */Array.prototype.getMax =function() {varmax = this[0];for(varx = 1; x < this.length; x++) {if(this[x] > max) { max = this[x]; } }returnmax; }; Array.prototype.getMax =function() {letmax =Math.max(...this);retu...
Array.prototype.max = function(){ return Math.max.apply({},this) } Array.prototype.min = function(){ return Math.min.apply({},this) } [1,2,3].max()// => 3 [1,2,3].min()// => 1方法三:1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 function getMaximin(arr,ma...
Hi friends! Today I want to show you how to get the index of the max value in an array using JavaScript. When we work with an array of numbers, sometimes we need to find out what’s the maximum value, and then find its position in the array. ...
var name=new Array("zhangsan","lisi"); 要说明的是,虽然第二种方法创建数组指定了长度,但实际上所有情况下数组都是变长的,也就是说即使指定了长度为5,仍然可以将元素存储在规定长度以外的,注意:这时长度会随之改变。 2、数组的元素的访问 var testGetArrValue=arrayObj[1]; //获取数组的元素值 ...
In the example above, we have used theMath.max(..arr)to get the max value of an array, then we have passed the max value to the Array.indexOf() method to get index of it. TheMath.max()method accepts only the individual values but not an array, so we unpacked the array by using...
Using indexOf() with Math.max() Method To get an index of the max value in a JavaScript array: Use the Math.max() function to find the maximum number from the given numbers. Here, we passed an array and used the spread operator (...) to expand the array into individual elements. ...
You can use the Math.max() and Math.min() methods in combination with the apply() method to find the maximum or minimum values within an array or an array-like object, like this:ExampleTry this code » var numbers = [1, 5, 2, -7, 13, 4]; var maxValue = Math.max.apply...
function(value,index,array) array 代表之前的数组参数 这样我们就可以在回调函数中修改数组对象 var obj = {min:10,max:20}; var num = [10,12,15]; var checkNumRange = function(value) { if(typeof value !== 'number') { return false; ...