Write a JavaScript program to find duplicate values in a JavaScript array. Click me to see the solution 21. Flatten Nested Array Write a JavaScript program to flatten a nested (any depth) array. If you pass shallow, the array will only be flattened to a single level. Sample Data : consol...
First it iterates the given array and create a result object of [rowIndex],[colIndex] = [dataIndex] format so that it can be fetched easily by using associative array like syntax. In the same iteration, we put unique values of colIndex in newCols array which will be used to create ...
UniqueValueRenderer type String The type of Renderer. UniqueValueRenderer uniqueValueGroups UniqueValueGroup[]|null|undefined An array of objects defining groups of unique values. UniqueValueRenderer uniqueValueInfos UniqueValueInfo[]|null|undefined Defines categories and their corresponding symbols based on...
function doAdd(num1, num2) { if(arguments.length == 1) { alert(num1 + 10); } else if (arguments.length == 2) { alert(arguments[0] + num2); } } 在重写后的这个 doAdd()函数中,两个命名参数都与 arguments 对象一起使用。由于 num1 的值与 arguments[0]的值相同,因此它们可以互换使...
If you want to add new values to this default whiteList you can do the following: Copy var myDefaultWhiteList = $.fn.tooltip.Constructor.DEFAULTS.whiteList // To allow table elements myDefaultWhiteList.table = [] // To allow td elements and data-option attributes on td elements myDefaultWhi...
你应该优先使用 dojo 的数组模块,而不是原生 JavaScript 数组函数,原因有很多。Dojo 的数组模块名为dojo/_base/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...
If you want to add new values to this default whiteList you can do the following: Copy var myDefaultWhiteList = $.fn.tooltip.Constructor.DEFAULTS.whiteList // To allow table elements myDefaultWhiteList.table = [] // To allow td elements and data-option attributes on td elements myDefaultWhi...
Disallows duplicate property names or parameter values.Strict mode throws an error when it detects a duplicate named property in an object (e.g.,var object = {foo: "bar", foo: "baz"};) or a duplicate named argument for a function (e.g.,function foo(val1, val2, val1){}), thereby...
conststr="JavaScript is Awesome";//convert to an array of single characters.str.split("");// returns ["J", "a", "v", "a", "S", "c", "r", "i", "p", "t", " ", "i", "s", " ", "A", "w", "e", "s", "o", "m", "e"]//convert to an array of words...
uptimetocheckif the element existsinthe hash// If it does exist,addthat elementtothe new array.var hashmap = {};var intersectionArray = [];firstArray.forEach(function(element) {hashmap[element] = 1;});// Since weonlywanttopushuniqueelementsinourcase... we can implement a counterto...