deep-storage - npm Package Compare versions

Comparing version 1.0.0 to 1.0.1

package.json

 {
   "name": "deep-storage",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "Simple observable state management for reactive applications",
@@ -5,0 +5,0 @@ "main": "./lib/index.js",

src/__tests__/index.test.ts

@@ -10,2 +10,21 @@ import deepStorage, { isPathMatch } from '../';
 
+test('props', () => {
+  const storage = deepStorage({
+    value1: 1,
+    value2: 'two'
+  });
+  const props = storage.props;
+  expect(props.value1).toBeTruthy();
+  expect(props.value2).toBeTruthy();
+  expect(props.value1.state).toEqual(1);
+  expect(props.value2.state).toEqual('two');
+});
+
+test('init', () => {
+  const storage = deepStorage({
+  });
+  const testStorage = storage.init('test')(1);
+  expect(testStorage.state).toEqual(1);
+});
+
 test('deep', () => {
@@ -12,0 +31,0 @@ const storage = deepStorage({

src/index.ts

@@ -51,2 +51,8 @@ export type StateUpdateCallback = <DeepState>(path: Path, newState: DeepState, oldState: DeepState) => void;
     /**
+     * Creates a new DeepStorage at this point in the object path and
+     * gives it an initial value if one hasn't already been set
+     */
+    init: <DeepState>(...path: Path) => (deepState: DeepState) => DeepStorage<DeepState>;
+
+    /**
      * Gets the root deep storage
@@ -104,2 +110,3 @@ */
     private id: number = 0;
+    private initialStates: {[key: string]: any} = {};
 
@@ -148,3 +155,3 @@ private subscriptions: { [key: number]: { paths: Path[], callback: StateUpdateCallback } } = {};
     stateIn = <DeepState>(...path: Path) => {
-        let currentState: any = this.state;
+        let currentState: any = typeof this.state === 'undefined' ? this.initialStates[''] : this.state;
         for (let p of path) {
@@ -155,3 +162,4 @@ if (!(p in currentState)) {
                 // instead of an object
-                currentState[p] = {};
+                const init = this.initialStates[path.join('.')];
+                currentState[p] = typeof init === 'undefined' ? {} : init;
             }
@@ -162,2 +170,6 @@ currentState = currentState[p];
     }
+    init = <DeepState>(...path: Path) => (deepState: DeepState): DeepStorage<DeepState> => {
+        this.initialStates[path.join('.')] = deepState;
+        return new NestedDeepStorage<DeepState, State>(path, this);
+    }
     deep = <DeepState>(...path: Path): DeepStorage<DeepState> => {
@@ -188,4 +200,3 @@ return new NestedDeepStorage<DeepState, State>(path, this);
         const result = {} as {[P in keyof State]: DeepStorage<State[P]>};
-        const state = this.state;
-        for (let key in state) {
+        for (let key of Object.keys(this.state)) {
             result[key] = this.deep(key);
@@ -223,2 +234,5 @@ }
     }
+    init = <DeepState>(...path: stringOrNumber[]) => (deepState: DeepState): DeepStorage<DeepState> => {
+        return this.rootStorage.init<DeepState>(...this.path.concat(path))(deepState);
+    }
     deep = <DeepState>(...path: stringOrNumber[]): DeepStorage<DeepState> => {
@@ -241,4 +255,3 @@ return this.rootStorage.deep(...this.path.concat(path));
         const result = {} as {[P in keyof State]: DeepStorage<State[P]>};
-        const state = this.state;
-        for (let key in state) {
+        for (let key of Object.keys(this.state)) {
             result[key] = this.deep(key);
@@ -245,0 +258,0 @@ }

No alert changes

Improved metrics

Total package byte prevSize

186558

increased by0.69%

Lines of code

1177

increased by2.53%

No dependency changes