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Assembly 2022-03-20 06:00:11
how to listen for changes on an ObservableMap
import java.util.HashMap; import java.util.Map; /*from www . j a v a 2 s . co m*/ import javafx.collections.FXCollections; import javafx.collections.MapChangeListener; import javafx.collections.ObservableMap; public class Main { public static ... Add solution -
Javascript 2022-02-24 19:40:09
javascript hashmap
let contacts = new Map() contacts.set('Jessie', {phone: "213-555-1234", address: "123 N 1st Ave"}) contacts.has('Jessie') // true contacts.get('Hilary') // undefined contacts.set('Hilary', {phone: "617-555-4321", address: &qu... Add solution -
Other 2022-02-03 00:15:12
js return unique values from array of objects
const array = [ { id: 3, name: 'Central Microscopy', fiscalYear: 2018 }, { id: 5, name: 'Crystallography Facility', fiscalYear: 2018 }, { id: 3, name: 'Central Microscopy', fiscalYear: 2017 }, { id: 5, name: 'Crystallography Facility', fiscalY... Add solution -
Javascript 2022-02-01 00:07:57
javascript all type of data
/* The latest ECMAScript standard defines nine types: Six Data Types that are primitives, checked by typeof operator: undefined : typeof instance === "undefined" Boolean : typeof instance === "boolean" Number : typeof instance === &qu... Add solution -
Other 2022-01-31 07:50:53
Given an array of integers, every element appears thrice except for one which occurs once.
let contacts = new Map() contacts.set('Jessie', {phone: "213-555-1234", address: "123 N 1st Ave"}) contacts.has('Jessie') // true contacts.get('Hilary') // undefined contacts.set('Hilary', {phone: "617-555-4321", address: &qu... Add solution -
Javascript 2022-01-24 02:00:56
data type javascript
/* The latest ECMAScript standard defines nine types: Six Data Types that are primitives, checked by typeof operator: undefined : typeof instance === "undefined" Boolean : typeof instance === "boolean" Number : typeof instance === &qu... Add solution