let – javascript
let is a javascript keyword used to declare a variable, it is introduced by ECMAScript 2015(ES6) in 2015. Variable declared…
var – JavaScript
var is a javascript keyword, used to declare a variable. variable declared with var has functionedscope or global scope. Before…
Javascript Identifiers
In javascript, variables have meaningful names, these names are called identifiers. Identifiers are unique, it means once a variable name…
Strings – Javascript
Strings are sequence of characters. In javascript a string can be placed inside double quotes and in single quotes as…
Scope of variable – Javascript
Scope specifies the accessibility of a variable in a program. Javascript variables have 3 scope Local scope A variable declared…
Dynamic types – javascript
Javascript is loosely typed language, so a variable can be used without declaring its type. Javascript determines the data type…
Get data type of a variable – Javascript
JavaScript variable can hold different types of data like integer, float, character, string, function, To check what data currently a…
Variable – javascript
In JavaScript, Variable is use to store data and allows operations as per data types. Data in a variable can…
Javascript comments
Comments are used for following in javascript Javascript comments are of two types: Single line comment Two forward slashes without…
External javascript file
A file with .js extension contain javascript code. It allows javascript code to be written in a single javascript file…