[UPDATE] clean code

.editorconfig

@@ -0,0 +1,11 @@
+root = true
+
+[*]
+indent_style = tab
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

.jshintrc

@@ -15,7 +15,6 @@
 	"nonbsp": true,
 	"nonew": true,
 	"plusplus": false,
-	"quotmark": "single",
 	"undef": true,
 	"unused": true,
 	"strict": true,

lib/array.js

@@ -19,12 +19,18 @@ function registerMethod(obj, name, fun){
 }
 
 registerMethod(Array.prototype, "compare",function(testArr){
-	if (this.length != testArr.length) return false;
+	if ( this.length !== testArr.length ) {
+		return false;
+	}
 	for (var i = 0; i < testArr.length; i++) {
-		if (this[i].compare) {
-	    if (!this[i].compare(testArr[i])) return false;
+		if ( this[i].compare ) {
+	    if ( !this[i].compare( testArr[i] ) ) {
+				return false;
+			}
+		}
+		if ( this[i] !== testArr[i] ) {
+			return false;
 		}
-		if (this[i] !== testArr[i]) return false;
 	}
 	return true;
 });
@@ -98,7 +104,7 @@ registerMethod(Array.prototype, "cummax", function(){
 
 registerMethod(Array.prototype, "clean", function(deleteValue) {
   for (var i = 0; i < this.length; i++) {
-    if (this[i] == deleteValue) {
+    if (this[i] === deleteValue) {
       this.splice(i, 1);
       i--;
     }
@@ -108,7 +114,7 @@ registerMethod(Array.prototype, "clean", function(deleteValue) {
 
 registerMethod(Array.prototype, "contains", function(elem){
 	for (var q = 0; q < this.length; q++){
-    if (elem == this[q]){
+    if (elem === this[q]){
       return true;
     }
   }
@@ -121,38 +127,47 @@ registerMethod(Array.prototype, "pickRandom", function(){
 });
 
 registerMethod(Array.prototype, "pickRandomElements",function(no){
-	if (no > this.length) no = this.length;
+	if ( no > this.length ) {
+		no = this.length;
+	}
 	var list = [];
-	while(list.length < no){
+	while( list.length < no ) {
 	  var t = parseInt(Math.random() * this.length);
-	  if (list.contains(t) === false) list.push(t);
+	  if ( list.contains(t) === false ) {
+			list.push(t);
+		}
 	}
 	var target = [];
-	for (var i = 0; i < list.length; i++){
-	  target.push (this[ list[i]] );
+	for (var i = 0; i < list.length; i++) {
+	  target.push ( this[ list[i] ] );
 	 }
 	return target;
-	});
+});
 
-	registerMethod(Array.prototype, "containsAll", function(list){
+registerMethod(Array.prototype, "containsAll", function(list){
 	for (var i = 0; i < list.length; i++){
-	  if (this.contains(list[i]) === false) return  false;
+	  if ( this.contains(list[i]) === false ) {
+			return false;
+		}
 	}
 	return true;
-	});
+});
 
 	registerMethod(Array.prototype, "containsAny", function(list){
 	for (var i = 0; i < list.length; i++){
-	  if (this.contains(list[i]) === true) return  true;
+	  if ( this.contains(list[i]) === true ) {
+			return  true;
+		}
 	}
 	return false;
 });
 
 registerMethod(Array.prototype, "removeItemAt", function(index){
 	var list = [];
 	for (var q = 0; q < this.length; q++){
-	  if (q != index)
-	  list.push(this[q]);
+	  if ( q !== index ) {
+	  	list.push(this[q]);
+		}
 	}
 	this.length = 0;
 	for (var l = 0; l < list.length; l++){
@@ -182,7 +197,7 @@ registerMethod(Array.prototype, "unique", function(){
 	var res = [];
 	for(var i = 0; i < this.length; i++){
 		var elem = this[i];
-		if (res.contains(elem) === false){
+		if ( res.contains(elem) === false ){
 			res.push(elem);
 		}
 	}