Window对象的history属性表示浏览器的历史记录,可以用history.back()和history.forward()来后退和前进,history.go(-3)后退三次。 Window控制:Window对象提供了移动(moveTo、moveBy)、改变大小(resizeTo、resizeBy)、滚动窗口(scrollTo、ScrollBy)、得到焦点(focus)、
// Collection of data in key-value pairs var obj1 = { x: 43, y: "Hello world!", z: function(){ return this.x; } } // Collection of data as an ordered list var array1 = [5, "Hello", true, 4.1]; Note- It is important to remember that any data type that is not a pr...
78. Invert Key-Value Pairs in Object Write a JavaScript program to invert the key-value pairs of an object, without mutating it. The corresponding inverted value of each inverted key is an array of keys responsible for generating the inverted value. If a function is supplied, it is applied ...
A Map is a collection of key/value pairs that can use anydata typeas a key and can maintain the order of its entries. Maps have elements of both Objects (a unique key/value pair collection) and Arrays (an ordered collection), but are more similar to Objects conceptually. This is becaus...
912. Sort an Array 922. Sort Array By Parity II 973. K Closest Points to Origin 977. Squares of a Sorted Array 1470. Shuffle the Array 1480. Running Sum of 1d Array 1512. Number of Good Pairs 1672. Richest Customer Wealth 1678. Goal Parser Interpretation 1720. Decode XORed Array 172...
sortedLastIndexBy stableSort symmetricDifference symmetricDifferenceBy symmetricDifferenceWith tail take takeRight takeRightWhile takeWhile toHash union unionBy unionWith uniqueElements uniqueElementsBy uniqueElementsByRight uniqueSymmetricDifference unzip unzipWith without xProd zip zipObject zipWith 🌐 Browser ...
In JavaScript, besides Object, Array should be the most commonly used type. An array is a group of ordered data, using square brackets to indicate[1, 2, 3], and each element can be accessed by index (the index starts from 0). The length and element types of arrays in JavaScript are...
$distinct Match By Distinct Key/Value Pairs $count Match By Length Of Sub-Document Array $or Match any of the conditions inside the sub-query $and Match all conditions inside the sub-query $exists Check that a key exists in the document $elemMatch Limit sub-array documents by query $elem...
orderBy Property orderBy OrderByInfo[] |null |undefinedautocast Since: ArcGIS Maps SDK for JavaScript 4.21 CSVLayer since 4.1, orderBy added at 4.21. Determines the order in which features are drawn in the view. You can sort features by a field value or the value returned from an Arca...
Set can be used for finding the union, intersection, and difference between two sets of data. However, Arrays have a significant advantage over Sets for additional manipulation of the data due to the sort(), map(), filter(), and reduce() methods, as well as direct compatibility with JSON...