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Strings

Easy

In plain terms

Strings are text, created with quotes or backticks. Template literals allow embedded expressions. Many methods: length, slice, indexOf, includes, replace, split, toUpperCase.

What you need to know

  • •Single, double, backtick quotes
  • •Template literals ${}
  • •Immutable - methods return new string

Try it yourself

Copy the code below and run it in your browser console or a code editor:

const s1 = 'Hello';
const s2 = "World";
const s3 = `Hello, ${name}!`;  // template literal

s1.length;           // 5
s1.slice(1, 4);      // "ell"
s1.indexOf('l');     // 2
s1.includes('ell');  // true
s1.replace('l', 'L'); // "HeLlo"
s1.split('');        // ['H','e','l','l','o']
s1.toUpperCase();    // "HELLO"

`2 + 2 = ${2 + 2}`;  // "2 + 2 = 4"

Learn more

Dive deeper with these trusted resources:

MDNjavascript.infoTutorialsPointW3Schools