Drop a few more bytes off #7

Author: developit

src/index.js

@@ -7,10 +7,10 @@ import delve from 'dlv';
  *	@returns {function} linkedStateHandler
  */
 export default function linkState(component, key, eventPath) {
-	let path = key.split('.');
-	const cache = component._linkedStates || (component._linkedStates = {});
+	let path = key.split('.'),
+		cache = component.__lsc || (component.__lsc = {});
 
-	return cache[`${key}\n${eventPath}`] || (cache[`${key}\n${eventPath}`] = function(e) {
+	return cache[key+eventPath] || (cache[key+eventPath] = function(e) {
 		let t = e && e.target || this,
 			state = {},
 			obj = state,

test/index.js

@@ -25,6 +25,15 @@ describe('linkstate', () => {
 		expect(linkState(component, 'testStateKey')).to.be.a('function');
 	});
 
+	it('should be memoized', () => {
+		expect(linkState(component, 'a')).to.equal(linkState(component, 'a'));
+		expect(linkState(component, 'a', 'x')).to.equal(linkState(component, 'a', 'x'));
+
+		expect(linkState(component, 'a')).not.to.equal(linkState(component, 'b'));
+		expect(linkState(component, 'a')).not.to.equal(linkState(component, 'a', 'x'));
+		expect(linkState(component, 'a', 'x')).not.to.equal(linkState(component, 'a', 'y'));
+	});
+
 	describe('linkState without eventPath argument', () => {
 		beforeEach( () => {
 			linkFunction = linkState(component, 'testStateKey');
@@ -110,13 +119,4 @@ describe('linkstate', () => {
 			expect(component.setState).to.have.been.calledWith({'testStateKey': 'nestedPathValueFromEvent'});
 		});
 	});
-
-	describe('linkState memoisation', () => {
-		it('should return the same function when called with the same inputs', () => {
-			linkFunction = linkState(component, 'nested.state.key');
-			const linkFunctionB = linkState(component, 'nested.state.key');
-
-			expect(linkFunction).to.equal(linkFunctionB);
-		});
-	});
 });