Variables and values

Lesson 2 of 15 7 min read Free lesson

Store numbers and text in variables with let and const, and name them well.

Storing values

JavaScript Try it in CodeLab

const church = 'RCCG';
let members = 120;
members = members + 5;
console.log(church + ' has ' + members + ' members');

Output

RCCG has 125 members

Keyword	Use it when
const	The value is never reassigned (use it by default)
let	The value will change later
var	Old code only; avoid

Store your name and age in variables, then print a sentence like "Ada is 17 years old."

Starting code Try it in CodeLab

// your variables here

Show a possible solution

Solution

const name = 'Ada';
let age = 17;
console.log(name + ' is ' + age + ' years old.');

Which keyword should you use for a value that never changes?

let const var

Which is a valid variable name?

2ndPlace second-place secondPlace

What does camelCase look like?

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