//orderBy array是引用哦Array.prototype.orderBy =function(conditionList) { conditionList=facade_(conditionList);//一个外观处理//上层调用://array.orderBy()顺序(not support value object|array)//array.orderBy("-")逆序(not support value object|array)//array.orderBy("code,-color,size") - 代表...
//orderBy array是引用哦Array.prototype.orderBy =function(conditionList) { conditionList=facade_(conditionList);//一个外观处理//上层调用://array.orderBy()顺序(not support value object|array)//array.orderBy("-")逆序(not support value object|array)//array.orderBy("code,-color,size") - 代表...
** @param {...IPropertyOrder[]} props 排序属性。 ** @returns 若项1大于项2返回1,若项1等于项2返回0,否则返回-1。 */ function SortByProps<T extends ISimpleObject> (item1: T, item2: T, ...props: IPropertyOrder[]) { "use strict"; var cps: Array<number> = []; // 存储排序属性...
//使用方法:arrayobj.sort(sortfunction)vararr=[6,1,7,3,6,5];arr.sort(compare);alert(arr.toString());//输出:1,3,5,6,6,7//排序规则functioncompare(value1,value2){if(value1>value2){return1;}elseif(value1<value2){return-1;}else{return0;}} 上面只是一种写法,而且个人认为不是很好,...
let arr = Array.from({length: 10}).map(() => gnrt()) 我们先建立纯数字, 无顺序的orderby来理这个思路. let orderby = function (arr, ...orders) { return arr.sort((a, b) => { let res = 0 for (let order of orders) { ...
includes() Checks if an array contains a specified element. sort() Sorts the elements alphabetically in strings and ascending order in numbers. slice() Selects part of an array and returns it as a new array. splice() Removes or replaces existing elements and/or adds new elements. To learn...
functionsortFunction(array)...{returnarray.sort(function(x,y)...{return(x[0]==y[0])?(x[1].localeCompare(y[1])):(x[0].localeCompare(y[0]))});} 1. 2. 3. 4. 5. 因此arrayObject.sort(sortFunction)的排序功能还是很强大的,终于能够实现了SQL语句中的ORDERBY一样的功能。
Array Properties and MethodsThe real strength of JavaScript arrays are the built-in array properties and methods:Examples var x = cars.length; // The length property returns the number of elements in cars var y = cars.sort(); // The sort() method sort cars in alphabetical order ...
JS array default sort By default, numbers are sorted numerically in ascending order and strings lexically also in ascending order. main.js let vals = [-3, 3, 0, 1, 5, -1, -2, 8, 7, 6]; let words = ['sky', 'blue', 'nord', 'cup', 'lemon', 'new']; ...
map()does not change the original array. map()executescallbackonce for each array element in order. map()does not executecallbackfor array elements without values. Example 1: Mapping array elements using custom function constprices = [1800,2000,3000,5000,500,8000]; ...