10 Days Of JavaScript
  • 10 Days Of JS
  • INDEX
    • Day 0: Hello, World!
    • Day 0: Data Types
    • Day 1: Arithmetic Operators
    • Day 1: Functions
    • Day 1: Let and Const
    • Day 2: Conditional Statements: If-Else
    • Day 2: Conditional Statements: Switch
    • Day 2: Loops
    • Day 3: Arrays
    • Day 3: Try, Catch, and Finally
    • Day 3: Throw
    • Day 4: Create a Rectangle Object
    • Day 4: Count Objects
    • Day 4: Classes
    • Day 5: Inheritance
    • Day 5: Template Literals
    • Day 5: Arrow Functions
    • Day 6: Bitwise Operators
    • Day 6: JavaScript Dates
    • Day 7: Regular Expressions I
    • Day 7: Regular Expressions II
    • Day 7: Regular Expressions III
    • Day 8: Create a Button
    • Day 8: Buttons Container
    • Day 9: Binary Calculator
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  1. INDEX

Day 1: Let and Const

PreviousDay 1: FunctionsNextDay 2: Conditional Statements: If-Else

Last updated 3 years ago

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Solution

letAndconst.js
let r = readLine();
    const PI = Math.PI;
    console.log(PI * r * r);
    console.log(2 * PI * r);
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