JavaScript: Check whether a given number is in a given range

JavaScript Basic: Exercise-118 with Solution

Check if Number is in Range

Write a JavaScript program to check whether a given number is in a given range.

Visual Presentation:

Sample Solution:

JavaScript Code:

// Function to check if 'y' lies within the range of 'x' and 'z'
function is_inrange(x, y, z) 
{
    return y >= x && y <= z; // Returns true if 'y' is between 'x' and 'z' (inclusive)
}

console.log(is_inrange(1,2,3));   // Output: true (2 is in the range between 1 and 3)
console.log(is_inrange(1,2,-3));  // Output: false (2 is not in the range between 1 and -3)
console.log(is_inrange(1.1,1.2,1.3)); // Output: true (1.2 is in the range between 1.1 and 1.3) 

Output:

true
false
true

Live Demo:

See the Pen javascript-basic-exercise-118 by w3resource (@w3resource) on CodePen.

Flowchart:

ES6 Version:

// Function to check if 'y' lies within the range of 'x' and 'z'
const is_inrange = (x, y, z) => {
    return y >= x && y <= z; // Returns true if 'y' is between 'x' and 'z' (inclusive)
};

console.log(is_inrange(1,2,3));   // Output: true (2 is in the range between 1 and 3)
console.log(is_inrange(1,2,-3));  // Output: false (2 is not in the range between 1 and -3)
console.log(is_inrange(1.1,1.2,1.3)); // Output: true (1.2 is in the range between 1.1 and 1.3)

For more Practice: Solve these Related Problems:

• Write a JavaScript program that determines if a given number falls within a specified inclusive range using logical operators.
• Write a JavaScript function that accepts a number and range boundaries and returns a boolean indicating whether the number is within range.
• Write a JavaScript program that validates an input number against a dynamic range provided by the user and outputs an appropriate message.

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