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
Validating email and password - JavaScript
Suppose, we have this dummy array that contains the login info of two of many users of a social networking platform −
const array = [{
email: 'usman@gmail.com',
password: '123'
},
{
email: 'ali@gmail.com',
password: '123'
}
];We are required to write a JavaScript function that takes in an email string and a password string.
The function should return a boolean based on the fact whether or not the user exists in the database.
Example
Following is the code −
const array = [{
email: 'usman@gmail.com',
password: '123'
}, {
email: 'ali@gmail.com',
password: '123'
}];
const matchCredentials = (email, password) => {
const match = array.find(el => {
return el.email === email && el.password === password;
});
return !!match;
};
console.log(matchCredentials('usman@gmail.com', '123'));
console.log(matchCredentials('usman@gmail.com', '1423'));This will produce the following output on console −
true false
Updated on: 01-Oct-2020
2K+ Views
Advertisements