Concatenate several TypedArray objects of one type

concat.typed.arrays.js

function concatTypedArrays(...args) {

    if (!args.length) {
        throw new Error('Nothing to concatenate!');
    }

    const Constructor = args[0].constructor;

    args.forEach((arr) => {
        if (!(arr instanceof Constructor)) {
            throw new Error('Elements are of different types!');
        }
    });

    const count = args.length;
    const sumLength = args.reduce((sum, arr) => sum + arr.length, 0);

    const result = new Constructor(sumLength);

    let curLength = 0;

    for (let i = 0; i < count; i++) {
        result.set(args[i], curLength);
        curLength += args[i].length;
    }

    return result;

}