added form validators

src/core/utils/find-method.ts

@@ -1,7 +1,7 @@
 import { AppMainElement } from 'components/';
 
 export default function findMethod(actionString: string, appMain: AppMainElement): Function {
-	if (actionString) {
+	if (actionString && appMain) {
 		const methodSep = actionString.lastIndexOf('#');
 		const tag = actionString.slice(0, methodSep);
 		const method = actionString.slice(methodSep + 1);

src/core/utils/index.ts

@@ -1,3 +1,6 @@
+export * from './library';
+export * from './templating';
+
 export { default as toKebabCase } from './toKebabCase';
 export { default as update } from './update-deco';
 export { default as index } from './index-deco';
@@ -7,3 +10,4 @@ export { default as firstUpper } from './first-upper';
 export { default as query } from './query-deco';
 export { default as querys } from './querys-deco';
 export { default as findMethod } from './find-method';
+export { default as validator } from './validator';

src/core/utils/library.ts

@@ -0,0 +1,3 @@
+import { attr, controller, target, targets} from '@github/catalyst';
+
+export { attr, controller, target, targets } 

src/core/utils/templating.ts

@@ -0,0 +1,3 @@
+import { render, html, TemplateResult } from 'lit-html';
+
+export { render, html, TemplateResult };

src/core/utils/validator.ts

@@ -0,0 +1,25 @@
+import isEmail from 'validator/lib/isEmail';
+import isDate from 'validator/lib/isDate';
+import isNumeric from 'validator/lib/isNumeric';
+import matches from 'validator/lib/matches';
+
+const validator = {
+	is_email: [isEmail, '{- name} needs to be email format.'],
+	is_date: isDate,
+	is_numeric: isNumeric,
+	matches: matches,
+	is_same: [isSame, '{- name} needs to be same to {- field}.'],
+	required: [required, '{- name} is required.'],
+};
+
+function required(str: string): boolean {
+	if (!str || str == '') return false;
+	return true;
+}
+
+function isSame(str: string, field: string): boolean {
+	if (str === field) return true;
+	return false;
+}
+
+export default validator;