erknrio of Programming Guanches
7/27/2015 - 7:51 PM

Comprueba los tipos de datos en javascript. FROM: http://www.sitepoint.com/testing-for-empty-values/ FIDDLE: http://jsfiddle.net/ungyab32/1/

Comprueba los tipos de datos en javascript. FROM: http://www.sitepoint.com/testing-for-empty-values/ FIDDLE: http://jsfiddle.net/ungyab32/1/

empty.js
content_copyfile_download
function empty(data) {
    var count = 0, i;

    if (typeof data === 'number') {
        return false;
    }
    
    if (typeof data === 'boolean') {
      return !data;
    }

    if (data === undefined || data === null) {
        return true;
    }

    if (data.length !== undefined) {
        return data.length === 0;
    }

    for (i in data) {
        if (data.hasOwnProperty(i)) {
            count += 1;
        }
    }

    return count === 0;
}