difference(ArrayarrayA,ArrayarrayB ) :Array 返回A-B的差异集合,从A中减去全部B中存在的元素 Parameters arrayA :Array arrayB :Array Returns ArrayA中不同于B的元素 Ext.Arrayview source each(Array/NodeList/Objectiterable,Functionfn, [
使用Array.filter()和Array.find()来找出适当的值。 ➜ code cat differenceWith.js const differenceWith = (arr, val, comp) => arr.filter(a => !val.find(b => comp(a, b))); console.log(differenceWith([1, 1.2, 1.5, 3], [1.9, 3], (a,b) => Math.round(a) == Math.round(b...
使用Array.prototype.filter()和Array.prototype.findIndex()查找合适的值。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 constdifferenceWith=(arr,val,comp)=>arr.filter(a=>val.findIndex(b=>comp(a,b))===-1); 示例 代码语言:javascript 代码运行次数:0 运行 AI代码解释 differenceWith([1,1.2,...
//结果为1,2,3 (2)difference //difference var arr1 = [1,2,3]; var arr2 = [2,5,6]; alert(Ext.Array.difference(arr1,arr2)); //结果为:1,3 (3)each //each var arr = [1,2,3,4]; Ext.Array.each(arr, function(item){ if(item == 4){ return false ; } alert(item); /...
difference( Array arrayA, Array arrayB ) : Array 返回A-B的差异集合,从A中减去全部B中存在的元素 Parameters arrayA : Array arrayB : Array Returns Array A中不同于B的元素 Ext.Array view source each( Array/NodeList/Object iterable, Function fn, [Object scope], [Boolean reverse] ) : ...
$ node main.js [ 1, 2, 3, 4, 5 ] Array.of vs Array constructor The key difference between Array.of() and the Array constructor is shown here. main.js const arr1 = Array.of(7); const arr2 = Array(7); console.log(arr1); ...
// 可以通过如下代码模拟求差集 let difference = new Set([...set1].filter(x => !set2.has(x))); 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 浏览器兼容性...
A randomly accessible sequence of values of a generic type.The Array API is very similar to JavaScript's (MDN (opens new window)), with the notable difference that one must make sure that there are no null values if T is a non-nullable reference type. Example:var...
JavaScript Array toSpliced()ES2023 added the Array toSpliced() method as a safe way to splice an array without altering the original array.The difference between the new toSpliced() method and the old splice() method is that the new method creates a new array, keeping the original array ...
// 返回一个删除所有values值后的 array副本。(注:使用===表达式做相等测试。) _.without = restArguments(function(array, otherArrays) { return _.difference(array, otherArrays); }); // Produce a duplicate-free version of the array. If the array has already ...