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JavaScript: Check a string is in Kebab case

JavaScript String: Exercise-54 with Solution

Kebab case: "the-quick-brown-fox-jumps-over-the-lazy-dog"
Similar to snake case, above, except hyphens rather than underscores are used to replace spaces. It is also known as spinal case, param case, Lisp case in reference to the Lisp programming language, or dash case (or illustratively as kebab-case).
Write a JavaScript function to check a given string is in Kebab case or not.
Test Data:
('j') -> false
('Java-Exercises') -> true
('JavaScript-Exercises') -> true
('javascript_exercises') -> false
(12356) -> "It must be a string."

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript function to Check a string is in Kebab case</title>
</head>
<body>

</body>
</html>

JavaScript Code:

const test = (text) => {
  if (typeof text !== 'string') {
        return 'It must be a string.'
  }
  const pattern = /(\w+)-(\w)([\w-]*)/
  return pattern.test(text) && !text.includes('_')
}
console.log(test('j'))
console.log(test('Java-Exercises'))
console.log(test('JavaScript-Exercises'))
console.log(test('javascript_exercises'))
console.log(test(12356))

Sample Output:

false
true
true
false
It must be a string.

Flowchart:

Flowchart: JavaScript: Check a string is in Kebab case

Live Demo:

See the Pen javascript-string-exercise-54 by w3resource (@w3resource) on CodePen.


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Previous: Check a string is in Flat case.
Next: Check a string is a Pangram or not.

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JavaScript: Tips of the Day

function and arguments

const person = {
  name: 'Lydia Hallie',
  hobbies: ['coding'],
};

function addHobby(hobby, hobbies = person.hobbies) {
  hobbies.push(hobby);
  return hobbies;
}

addHobby('running', []);
addHobby('dancing');
addHobby('baking', person.hobbies);

console.log(person.hobbies);

The addHobby function receives two arguments, hobby and hobbies with the default value of the hobbies array on the person object.
First, we invoke the addHobby function, and pass "running" as the value for hobby and an empty array as the value for hobbies. Since we pass an empty array as the value for y, "running" gets added to this empty array.
Then, we invoke the addHobby function, and pass "dancing" as the value for hobby. We didn't pass a value for hobbies, so it gets the default value, the hobbies property on the person object. We push the hobby dancing to the person.hobbies array.
Last, we invoke the addHobby function, and pass "bdaking" as the value for hobby, and the person.hobbies array as the value for hobbies. We push the hobby baking to the person.hobbies array.
After pushing dancing and baking, the value of person.hobbies is ["coding", "dancing", "baking"]

Ref: https://bit.ly/2Hcpkm6