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JavaScript: Check if a date is between two other dates

JavaScript Datetime: Exercise-54 with Solution

Write a JavaScript function to check if a given date is between two other dates.

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Check if a date is between two other dates</title>
</head>
<body>

</body>
</html>

JavaScript Code:

//#Source https://bit.ly/2neWfJ2
const isBetweenDates = (dateStart, dateEnd, date) =>
  date > dateStart && date < dateEnd;
console.log(isBetweenDates(
  new Date(2010, 11, 20),
  new Date(2010, 11, 30),
  new Date(2010, 11, 19)
));
console.log(isBetweenDates(
  new Date(2010, 11, 20),
  new Date(2010, 11, 30),
  new Date(2010, 11, 25)
));

Sample Output:

false
true

Flowchart:

Flowchart: JavaScript- Check if a date is between two other dates

Live Demo:

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


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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