Important JavaScript Data Types
In this article, I will discuss some JS data types. So, let’s get started…
— JavaScript Number
The Number is a primitive data type in JavaScript. Number type represents an integer, float. Some of the number methods are
toString()- Returns a number as a string
parseInt()- Returns an integer
— JavaScript String
String is a primitive data type in JavaScript. It must be enclosed in single or double quotation marks. Some of the string methods are
length- The length property returns the length of a string
replace()- The replace() method replaces a specified value with another value in a string
toUpperCase()- A string is converted to upper case with toUpperCase() method
— JavaScript Array
An array is a special type of variable, which can store multiple values using a special syntax. Some of the array methods are
concat()- Used to join two or more arrays
map()- It’s a very powerful array method in js. Creates a new array with the results of calling a function for every array element. It’s a Higher Order Function in JavaScript.
pop()- Removes the last element from an array.
push()- Adds new items to the end of an array.
