js variables
//Making variables with let:
let numberOfFriends = 1;
//Incrementing:
numberOfFriends += 3; //numberOfFriends is now 4
// Variables with const
const minimumAge = 21; //CANNOT REASSIGN!
//Booleans - true or false values
true;
false;
let isHappy = true;
//Naming Conventions
// Use upper camel-cased names:
let numberOfChickens = 6; //GOOD
// NOT THE JS WAY:
// let number_of_chickens = 6;var javascript
var is a keyword to define the varible in js but as of es-6 we, use let and const keywords for the samejavascript variable
var myString = "string"; //var can be redefined
var myInt = 34; //var can be redefined
const myString2 = "string"; //const cannot be redefined
const myInt2 = 69; //const cannot be redefinedjs what does var mean
Used to create a variable that is globally scoped when not used in a function.
When it is used in a function, it can only be used in that function and not
outside of it. This statement is comparable to let but more globalized.how to declare variables javascript
//variables are a way to easily store data in javascript
//variables are declared by the var keyword, example...
var x = 10;
//or
var dog_name = "daisy";
//which can also be written as
var dog_name = 'daisy';
//same thing with single quotes and double quotesjavascript variables
// Also let, const
var e_number = 0;
var e_string = '';
var e_true = true;
var e_false = false;
var e_undefined = undefined;Copyright © 2021 Codeinu
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