range.js

range.js.carbide.md

range.js

This Gist was automatically created by Carbide, a free online programming environment.

You can view a live, interactive version of this Gist here.

range.js

// range :: (Number, Number, Number) -> [Number]
function range(start, end, step) {
    var results = [];
    if (step == null) { ///If \`step\` parameter is not provided (null), set \`step\` to default to 1.
        step = 1;
    }
    if (step > 0) { ///If \`step\` is a \*\*positive\*\* value:\\- iterate beginning at the \`start\` value//- continue while \`i\` <= end param//- increment \`i\` using \`step\` value//- push \`i\` to results array.
        for (var i = start; i <= end; i += step) {
            results.push(i);
        }
    } else {
        for (var i = start; i >= end; i += step) { ///Else, we assume \`step\` is a **negative** value:\\- iterate beginning at the \`start\` value//- continue while **\`i\` >= end** param//- **decrement** \`i\` using \`step\` value//- push \`i\` to results array.
            results.push(i);
        }
    }
    
	return results; ///Return the results array.
}

range(100, 50, -3);