JavaScript: Test whether an array of integers of length 2 does not contain 1 or a 3
JavaScript Basic: Exercise-78 with Solution
Write a JavaScript program to test whether an array of integers of length 2 does not contain 1 or 3.
Visual Presentation:
Sample Solution:
JavaScript Code:
// Function checks if the array does not contain the values 1 or 3
function is13(nums) {
// Check if index of 1 is -1 (not found) and index of 3 is -1 (not found)
if (nums.indexOf(1) == -1 && nums.indexOf(3) == -1) {
// If both values are not found, return true
return true;
} else {
// If at least one of the values is found, return false
return false;
}
}
// Example usage
console.log(is13([7, 8])); // true, as neither 1 nor 3 is present
console.log(is13([3, 2])); // false, as 3 is present
console.log(is13([0, 1])); // false, as 1 is present
Output:
true false false
Live Demo:
See the Pen JavaScript - Test whether an array of integers of length 2 does not contain 1 or a 3-basic-ex-78 by w3resource (@w3resource) on CodePen.
Flowchart:
ES6 Version:
// ES6 version using arrow function
const is13 = (nums) => {
return nums.indexOf(1) === -1 && nums.indexOf(3) === -1;
};
// Example usage
console.log(is13([7, 8]));
console.log(is13([3, 2]));
console.log(is13([0, 1]));
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