Does JavaScript Have a Method Like “range()” to Generate a Range Within the Supplied Bounds?

JavaScript does not have a built-in function like PHP’s `range`, but you can easily implement a function to achieve similar functionality. Here’s how you could create a function that generates a range of numbers or characters:

For Numbers

function range(start, end) {
    const arr = [];
    for (let i = start; i <= end; i++) {
        arr.push(i);
    }
    return arr;
}
console.log(range(1, 3)); // [1, 2, 3]

For Characters

function charRange(start, end) {
    const arr = [];
    for (let i = start.charCodeAt(0); i <= end.charCodeAt(0); i++) {
        arr.push(String.fromCharCode(i));
    }
    return arr;
}
console.log(charRange("A", "C")); // ["A", "B", "C"]

Combined Function

function rangeGeneric(start, end) {
    const arr = [];
    if (typeof start === 'number' && typeof end === 'number') {
        for (let i = start; i <= end; i++) {
            arr.push(i);
        }
    } else if (typeof start === 'string' && typeof end === 'string') {
        for (let i = start.charCodeAt(0); i <= end.charCodeAt(0); i++) {
            arr.push(String.fromCharCode(i));
        }
    }
    return arr;
}
console.log(rangeGeneric(1, 3)); // [1, 2, 3]
console.log(rangeGeneric("A", "C")); // ["A", "B", "C"]