any_missing.hhs

/**
 * @author Jianan Lin (林家南)
 * @param input - an array, matrix, tensor that you want to determine missing
 * @returns - true if missing, false else
 * A missing element is NaN, null, '', or undefined. Notice [] and {} are not missing.
 * 
 */


function any_missing(input) {

    *import math: ndim
    *import math: deep_copy

    // argument check
    if (arguments.length === 0) {
        throw new Error('Exception occurred in any_missing - no argument given');
    }

    if (arguments.length > 1) {
        throw new Error('Exception occurred in any_missing - wrong argument number');
    }

    if (!(Array.isArray(input)) && !(input instanceof Mat) && !(input instanceof Tensor)) {
        throw new Error('Exception occurred in any_missing - input must be an array, matrix or tensor');
    }

    let in_type = input instanceof Mat || input instanceof Tensor;
    let raw_in = in_type ? input.clone().val : deep_copy(input);
    return anymissing_helper(raw_in);

    function anymissing_helper(raw_in) {
        if (ndim(raw_in) === 1) {
            for (let i = 0; i < raw_in.length; i++) {
                if (raw_in[i] || raw_in[i] === 0) {
                    continue;
                }
                else {
                    return true;
                }
            }
            return false;
        }

        else {
            for (let i = 0; i < raw_in.length; i++) {
                if (anymissing_helper(raw_in[i]) === false) {
                    continue;
                }
                else {
                    return true;
                }
            }
            return false;
        }
    }
}