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Javascript 2021-09-10 15:18:03
angular 12 service for create update delete local storage items
import { Injectable } from '@angular/core'; import { Subject } from 'rxjs'; @Injectable({ providedIn: 'root' }) export class LocalStorageService { localStorage: Storage; changes$ = new Subject(); constructor() { this.localStorage = window.lo... Add solution -
Java 2021-09-10 14:58:02
static method vs instance method
static or class method 1) A method that is declared as static is known as the static method 2) We don't need to create the objects to call the static methods 3) Non-static (instance) members cannot be accessed in static context (static method, static blo... Add solution -
Other 2021-09-10 05:03:01
linked list head and tail
import java.util.Iterator; // Custom Linked List class using Generics class List<T> implements Iterable<T> { Node<T> head, tail; // add new Element at tail of the linked list in O(1) public void add(T data) { Node<T>... Add solution -
Javascript 2021-09-10 04:17:03
nodejs promise async
// server.js function square(x) { return new Promise(resolve => { setTimeout(() => { resolve(Math.pow(x, 2)); }, 2000); }); } async function layer(x) { const value =... Add solution -
Other 2021-09-09 18:13:02
RenderBox was not laid out
//in using GridView consider using shrinkWrap GridView.builder( itemCount: featuredCoursesData.length, gridDelegate: SliverGridDelegateWithFixedCrossAxisCount( crossAxisCount: (orientation == Orientation.portrait) ? 2 : 3), itemBuilder: (BuildCon... Add solution
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