how to declare a variable js

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showing results for - "how to declare a variable js"
Erika
25 Oct 2017
1//choose the best for your solution
2var myVariable = 22; //this can be a string or number. var is globally defined
3
4let myVariable = 22; //this can be a string or number. let is block scoped
5
6const myVariable = 22; //this can be a string or number. const is block scoped and can't be reassigned
Hanna
28 Jul 2016
1var Number = 5;
2var String = "Hi!";
3var boolen1 = true;
4var boolen2 = false;
5var array = [11, "Hi!", true];
6var object = {age:11, speach:"Hi!", likes_Bananas:true};
Sana
29 Jan 2018
1var <variable-name>;
2
3var <variable-name> = <value>;
4
Thibault
17 Nov 2019
1//let and var are both editable variables and can be changed later on in your program;
2let dog = 'Woof';
3//dog is equal to the string 'Woof';
4dog = false;
5//You can changed the value of dog now because it was defined with let and not const;
6
7let cow = 'Moo';
8//cow is equal to the string 'Moo';
9cow = true;
10//You can change the value of cow later on because it is not defined with const;
11
12//const is used when declaring a variable that can't be changed later on -- const stands for constant;
13const pig = 'oink';
14//This assigns the string 'oink' to pig which can not be changed because it is defined with const;
15pig = 'snort';
16//Above throws an error
17//Good Job you now know how to declare variables using JavaScript!!!
Alessandra
21 Jul 2017
1// let & var are both editable variables:
2var cow = 'moo';
3let pig = 'oink';
4cow = 10;
5pig = 10;
6// const is a permanent variable; you cannot change it.
7const uncuttableGrass = '\/\/';
8uncuttableGrass = '___';
9// above throws an error
Laura
30 Feb 2020
1const name = 'Anthony';
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