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JavaScript - String includes() method example

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Created by:
Palpys
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// ONLINE-RUNNER:browser;

const text = 'ABCDE';

console.log(text.includes('A')); // true
console.log(text.includes('X')); // false

console.log(text.includes('B'));    // true
console.log(text.includes('B', 2)); // false

console.log(text.includes('ABC')); // true
console.log(text.includes('XYZ')); // false

1. Documentation

Syntax

String includes(searchString)

String includes(searchString, position)

Parameters

searchString - a string to be searched for within the string,

position - the position within the string at which to begin searching for searchString (0 by default).

ResultThe method returns true if the searchString is found anywhere within the given string,  otherwise returns false.
DescriptionThis method lets you determine whether or not a string includes another string.

See also

  1. JavaScript - check if string includes a substring

  2. JavaScript - check if string includes a character

References

  1. String.prototype.includes() - JavaScript | MDN

Alternative titles

  1. JavaScript - String.includes() documentation with examples
  2. js - String includes() method documentation with examples
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JavaScript - String (documentation)

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