JS-201-ReactFundamentals
  • Part 0: App Overview
  • Part 1: Intro to React
    • 1.0: Packages Setup
    • 1.1: Project Setup
    • 1.2: React Router Dom
  • Part 2: JavaScript Concepts
    • 2.0: ES6 Overview
    • 2.1: classes
    • 2.2: constructors
    • 2.3: extends
    • 2.4: super
    • 2.5: interpolation
    • 2.6: map
    • 2.7: filter
  • Part 3: Functional Components
    • 3.0: Functional Components Overview
    • 3.1: Calling Functional Components
    • 3.2: Single Element Rule
    • 3.3: Arrow Functions
    • 3.4: Challenge
    • 3.4: Solution
    • 3.5: Challenge 2
    • 3.5: Solution 2
  • Part 4: JSX Challenge
    • 4.1: JSX Overview
    • 4.1: Challenge Answer
    • 4.2: className
  • Part 5: Class Concepts
    • 5.1: State
    • 5.2: setState
    • 5.3: Class Components Challenge
    • 5.4: Class Components Challenge Answer
  • Part 6: Props Starter
    • 6.0: Props Overview
    • 6.1: Props Demo and Challenge 1
    • 6.2: Props Answer 2
    • 6.3: Props Passing Functions and Challenge 2
    • 6.4: Props Answer 2
    • 6.5: External Props and Mapping Components
    • 6.6: PropTypes
  • Part 7: Lifecycle Methods
    • 7.0: Lifecycle Overview
    • 7.1: Lifecycle Methods
    • 7.2: Mounting Methods
    • 7.3: Update Methods
    • 7.4: Unmount Methods
  • Part 8: Apps
    • 1.0 - Small Timer Apps
      • 1.1 - Simple Timer
      • 1.2 - Clock App
      • 1.3 - Stop Watch App
      • 1.4 - Challenge
    • 2.0 - Concept List
      • 2.1 - Concept Data
      • 2.2 - Concept App Component
      • 2.3 - Concept Component
      • 2.4 - Concept List Component
    • 3.0 - NYT
      • 3.1 - NytApp Component
      • 3.2 - Nyt Results
    • 4.0 - The Friend List App
      • 4.1 - Friend List App Component
      • 4.2 - Friend Component
    • 5.0 - Movie Search Application
      • 5.1 - Form Component
      • 5.2 - Form Results Component
      • 5.3 - Styled Components
    • 6.0 - YouTube Api
      • 6.1 - Video Component
      • 6.2 - Video Component
      • 6.3 - Video Component
    • 7.0 - Github Api Application
      • 7.1 - The Users
      • 7.2 - Github API Component
      • 7.3 - Github API Card
      • 7.4 - Github API Card Form
      • 7.5 - Github API Card List
      • 7.6 - Github API Search
      • 7.7 - Github API Challenge
    • 8.0 - Bitcoin Api Application
      • 8.1 - Bitcoin API Setup
      • 8.2 - Bitcoin API Fetch
      • 8.3 - Bitcoin API Line Chart
      • 8.4 - Bitcoin API Fetching Data
      • 8.5 - Bitcoin API Info Box
      • 8.6 - Bitcoin API Completed Code
    • 9.0 - Google Maps Api Challenge
    • 10.0 - Sound Cloud App Challenge
    • 11.0 - VR App Challenge
    • 12.0 - React Native Intro
  • Part 9: Project
  • Part 10: Notes
    • 10.1 - Resources
    • 10.2 - Troubleshooting
Powered by GitBook
On this page
  1. Part 2: JavaScript Concepts

2.5: interpolation

Good React developers are all about writing streamlined code. There is a tendency to do all JSX(HTML), CSS, and JavaScript in the same file. Being streamlined using arrow functions is common, and knowing string interpolation is important as well, especially when writing JSX code. Let's just review a little before forging ahead.

Tools needed for the job:

  1. `

  2. $

  3. {yourvariable}

Here are some examples:

const username = 'Kenn';

console.log(`${username} is the true JS Wizard!`);

Here's another examle. This is called a template literals - which breaks things into more than one line, and it's handy with HTML.

console.log(`Hey students,
What bugs can
${username}
fix 
for you today`);

It's very common to see interpolation with an object in React. Check it out:

const person = {
    username: 'Kenn',
    profession: 'Secret Agent'
}

console.log(`${person.username}, ${person.profession}`, 'extraordinaire'); //Kenn, Secret Agent, Extraordinaire

Get some practice with interpolation. You will see it a lot in weeks to come.

Previous2.4: superNext2.6: map

Last updated 7 years ago