var obj = {
    quitSpacesOfAstring : function(str) {
    this.cadena = '';
    this.arrayString = str.split(' ');
    for (var i = 0; i < this.arrayString.length; i++) {
        if (this.arrayString[i] != "") {
            this.cadena += this.arrayString[i];
        }
    }
    return this.cadena;
  }
}

var ad = []
var ww = []

for(var i=0; i<3; i++) {
	ad[i] = 'la la pa'
	ww[i] = obj.quitSpacesOfAstring(ad[i])
	console.log(ww[i] + " " + i + " " +obj.quitSpacesOfAstring(ad[i]) )
}