Add length equals validator

Author: CodingCarlos

lib/validators/length.js

@@ -3,6 +3,7 @@
  *
  *	{
  *		length: {
+ *			eq: Number,		// Exact allowed value
  *			max: Number,	// Maximum allowed value
  *			min: Number		// Minimum allowed value
  *		}
@@ -14,6 +15,11 @@ function isValid(data, model) {
 		return true;
 	}
 
+	// Data hasn't the exact eq lenght 
+	if(model.length.eq && data.length !== model.length.eq) {
+		return false;
+	}
+
 	// Data is higher than max 
 	if(model.length.max && data.length > model.length.max) {
 		return false;