JavaScript: Convert a given string into an array of words

JavaScript fundamental (ES6 Syntax): Exercise-103 with Solution

String to Array of Words

Write a JavaScript program to convert a given string into an array of words.

• Use String.prototype.split() with a supplied pattern (defaults to non-alpha as a regexp) to convert to an array of strings.
• Use Array.prototype.filter() to remove any empty strings.
• Omit the second argument, pattern, to use the default regexp.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2
// Define the 'words' function to split a string into words using a specified pattern.
const words = (str, pattern = /[^a-zA-Z-]+/) => {
  // Split the input string using the specified pattern.
  // Filter out any empty strings from the resulting array.
  return str.split(pattern).filter(Boolean);
};

// Test the 'words' function with different input strings.
console.log(words('I love javaScript!!')); // Output: ['I', 'love', 'javaScript']
console.log(words('python, java, php')); // Output: ['python', 'java', 'php']

Output:

["I","love","javaScript"]
["python","java","php"]

Visual Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-103-1 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

• Write a JavaScript program that splits a string into an array of words based on spaces and punctuation.
• Write a JavaScript function that trims and splits a sentence into words while filtering out empty strings.
• Write a JavaScript program that converts a paragraph into an array of words, accounting for multiple consecutive whitespace characters.

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