Update README and Promise

README.md

@@ -9,25 +9,39 @@
 import { Queryable } from "./implements/queryable";
 
 const queryable = new Queryable<{ name, overall }>();
-let source = [
- { name: 'Ronaldo', overall: 96 },
- { name: 'Messi', overall: 98 },
- { name: 'Mbappe', overall: 86 },
-]
 
-let query = queryable
- .from(source)
- .where(x => x.overall > 90);
+let promiseApi = new Promise((resolve, reject) => {
+ // Fake data from api
+ setTimeout(() => {
+ console.log('...get data');
+ resolve([
+ { name: 'Ronaldo', overall: 96 },
+ { name: 'Messi', overall: 98 },
+ { name: 'Mbappe', overall: 86 },
+ ]);
+ }, 3000);
+})
 
-console.log(query.toList())
-// [{name:'Ronaldo', overall: 96}, {name:'Messi', overall: 98}]
+async function main() {
+ // Just query not execute query
+ let query = queryable
+ .from(promiseApi)
+ .where(x => x.overall > 90);
 
-let query1 = query
- .where(x => x.overall > 96)
- .select(x => `Best player is ${x.name}`);
+ const count = await query.count();
+ console.log(count)
+ // 2
 
-console.log(query1.toList())
-// ['Best player is Messi']
+ let query1 = query
+ .where(x => x.overall > 96)
+ .select(x => `Best player is ${x.name}`);
+
+ const num1 = await query1.toList();
+ console.log(num1)
+
+}
+
+main();
 ```
 
 ### Process

src/implements/methods.ts

@@ -30,7 +30,13 @@ export class IteratorMethods<T> implements Methods<T> {
  }
 
  toList<S>(): Promise<S[]> {
- if (this._data) return Promise.resolve(this._data as S[]);
+ if (this._data) {
+ let _result = Object.assign([], this._data as any[] | T[]);
+ this._iteratorCollection.forEach((ite: IIterator<T>) => {
+ _result = ite.execute(_result);
+ });
+ return Promise.resolve(_result as S[]);
+ }
  if (Utils.isPromise(this._source)) {
  return (this._source as Promise<T[]>).then(data => {
  let _result = Object.assign([], data as any[] | T[]);

src/index.ts

@@ -14,17 +14,25 @@ let promiseApi = new Promise((resolve, reject) => {
  }, 3000);
 })
 
-// Just query not execute query
-let query = queryable
- .from(promiseApi)
- .where(x => x.overall > 90);
+async function main() {
+ // Just query not execute query
+ let query = queryable
+ .from(promiseApi)
+ .where(x => x.overall > 90);
 
-query.count().then(x => console.log(x))
-// [{name:'Ronaldo', overall: 96}, {name:'Messi', overall: 98}]
+ const count = await query.count();
+ console.log(count)
+ // 2
+
+ let query1 = query
+ .where(x => x.overall > 96)
+ .select(x => `Best player is ${x.name}`);
+
+ const num1 = await query1.toList();
+ console.log(num1)
+
+}
+
+main();
 
-let query1 = query
- .where(x => x.overall > 96)
- .select(x => `Best player is ${x.name}`);
 
-query1.toList().then(res => console.log(res));
-// ['Best player is Messi']