Slit out assertion funcs. & add single field validation example

README.md

@@ -34,7 +34,7 @@ Usage and documentation
 
 Please see http://godoc.org/gopkg.in/bluesuncorp/validator.v6 for detailed usage docs.
 
-##### Example:
+##### Examples:
 ```go
 package main
 
@@ -73,6 +73,12 @@ func main() {
 
 	validate = validator.New(config)
 
+	validateStruct()
+	validateField()
+}
+
+func validateStruct() {
+
 	address := &Address{
 		Street: "Eavesdown Docks",
 		Planet: "Persphone",
@@ -109,6 +115,19 @@ func main() {
 
 	// save user to database
 }
+
+func validateField() {
+	myEmail := "joeybloggs.gmail.com"
+
+	errs := validate.Field(myEmail, "required,email")
+
+	if errs != nil {
+		fmt.Println(errs) // output: Key: "" Error:Field validation for "" failed on the "email" tag
+		return
+	}
+
+	// email ok, move on
+}
 ```
 
 Benchmarks

examples/simple.go

@@ -35,6 +35,12 @@ func main() {
 
 	validate = validator.New(config)
 
+	validateStruct()
+	validateField()
+}
+
+func validateStruct() {
+
 	address := &Address{
 		Street: "Eavesdown Docks",
 		Planet: "Persphone",
@@ -71,3 +77,16 @@ func main() {
 
 	// save user to database
 }
+
+func validateField() {
+	myEmail := "joeybloggs.gmail.com"
+
+	errs := validate.Field(myEmail, "required,email")
+
+	if errs != nil {
+		fmt.Println(errs) // output: Key: "" Error:Field validation for "" failed on the "email" tag
+		return
+	}
+
+	// email ok, move on
+}