Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Compare array of objects - JavaScript
We have two arrays of objects like these −
const blocks = [
{ id: 1 },
{ id: 2 },
{ id: 3 },
{ id: 4 },
]
const containers = [
{ block: { id: 1 } },
{ block: { id: 2 } },
{ block: { id: 3 } },
]We are required to write a function that checks each object of blocks array with the block key of each object of containers array and see if there exists any id in blocks array that is not present in the containers array. If so, we return false, otherwise we return true.
Example
Let’s write the code −
const blocks = [
{ id: 1 },
{ id: 2 },
{ id: 3 },
{ id: 4 },
]
const containers = [
{ block: { id: 1 } },
{ block: { id: 2 } },
{ block: { id: 3 } },
]
const checkProperty = (first, second) => {
const findInContainers = id => {
for(let i = 0; i < second.length; i++){
if(second[i].block.id === id){
return true;
};
};
return false;
};
for(let i = 0; i < first.length; i++){
if(!findInContainers(first[i].id)){
return false;
};
};
return true;
};
console.log(checkProperty(blocks, containers));Output
Following is the output in the console −
false
Updated on: 14-Sep-2020
1K+ Views
Advertisements