JavaScript 利用 filter+正则表达式对 list进行过滤包括模糊匹配 模糊查找 this.users.filter((item)=>{ var reg= new RegExp(this.searchText,'i'); return reg.test(item.name); }); 注:正则中的“i”指忽略大小写! 精确查找 this.users.filter((item)=>{ return item.name==this.searchText; });
const array2= [{id: 1}, {id: 6}, {id: 3}, {id: 5}];//Find objects in array1 that have ids not in array2const elementsNotInArray2 = array1.filter(obj1 => !array2.some(obj2 => obj2.id ===obj1.id)); console.log(elementsNotInArray2);//Output: [{id: 2}, {id: 4...
$ node filter_datatype.js [ 10, 1.4, 17 ] JS array filter objectsWe have an array of objects. We filter the array based on the object property. filter_by_city.js const users = [ { name: 'John', city: 'London', born: '2001-04-01' }, { name: 'Lenny', city: 'New York',...
var obj = {}; return arr.filter(ele => { if (!obj[ele]) { obj[ele] = true; return true; } }) } function unique3(arr) { var result = []; arr.forEach(ele => { if (result.indexOf(ele) == -1) { result.push(ele) } }) return result; } 3、字符串去重 String.prototype...
数据类型和typeof JavaScript的数据类型分 简单数据类型(基本数据类型)和复杂数据类型。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 undefined,null,boolean,number,string 复杂数据类型,object typeof检测变量的类型,变量的类型取决于变量的类型,变量是没有类型的。返回值:string,number,等。
Stream<T> filter(Predicate<? super T> predicate);boolean test(T t); 代码语言:javascript 代码运行次数:0 运行 AI代码解释 List<Integer>list=Arrays.asList(12,3,4,5,4);list.stream().filter(i->i%2==0).forEach(System.out::print);// 1244 ...
You can filter an array of objects by testing whether the properties match a certain set of criteria or conditions. Let’s see a practical example. Suppose you have a list ofpeopledata as follows: letpeople=[{name:"Steve",age:27,country:"America",},{name:"Linda",age:23,country:"German...
filter()内部接受的也是一个函数,这上面的函数就是过滤一下整个数组中大于10的数字,返回出一个大于10的新数组。当然在实际项目中,我们经常过滤对象中的一个键的值是否满足要求。 constlist=[{name:"mark",age:17},{name:"orange",age:18},{name:"alex",age:19},{name:"marry",age:20},];constfilterFn...
https://listjs.com mixitup - MixItUp - A Filter & Sort Plugin. grid - Drag and drop library for two-dimensional, resizable and responsive lists. jquery-match-height - a responsive equal heights plugin for jQuery. SurveyJS - SurveyJS is a JavaScript Survey and Form Library. https://survey...
Example 1: Using Array Filter In JavaScript With Arrow Functions We can use an array filter in JavaScript to make the code even shorter and easier to understand. In the below example, we will create an array of people objects and filter out the objects with an age greater than 18. ...