JavaScript: Test whether an array of integers of length 2 contains 1 or a 3
JavaScript Basic: Exercise-77 with Solution
Write a JavaScript program to test whether an array of integers of length 2 contains 1 or 3.
Visual Presentation:
Sample Solution:
JavaScript Code:
// Function checks if the array 'nums' contains either 1 or 3
function contains13(nums) {
// Check if 1 is present at any index or 3 is present at any index
if (nums.indexOf(1) !== -1 || nums.indexOf(3) !== -1) {
// Return true if either 1 or 3 is found
return true;
} else {
// Return false if neither 1 nor 3 is found
return false;
}
}
// Example usage of the contains13 function
console.log(contains13([1, 5])); // Should return true, as 1 is present
console.log(contains13([2, 3])); // Should return true, as 3 is present
console.log(contains13([7, 5])); // Should return false, as neither 1 nor 3 is present
Output:
true true false
Live Demo:
See the Pen JavaScript - Create a new array taking the middle elements of the two arrays of integer and each length 3 - basic-ex-75 by w3resource (@w3resource) on CodePen.
Flowchart:
ES6 Version:
// ES6 version using arrow function
const contains13 = (nums) => {
return nums.includes(1) || nums.includes(3);
};
// Example usage
console.log(contains13([1, 5]));
console.log(contains13([2, 3]));
console.log(contains13([7, 5]));
Improve this sample solution and post your code through Disqus.
Previous: JavaScript program to create a new array taking the first and last elements from a given array of integers and length must be greater or equal to 1.
Next: JavaScript program to test whether an array of integers of length 2 does not contain 1 or a 3.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.
https://www.w3resource.com/javascript-exercises/javascript-basic-exercise-77.php
- Weekly Trends and Language Statistics
- Weekly Trends and Language Statistics