Commit ff1d91b

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Add examples

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Lines changed: 17 additions & 0 deletions

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	`1`	`+'use strict';`
	`2`	`+`
	`3`	`+const asyncIterator = {`
	`4`	`+ counter: 0,`
	`5`	`+ async next() {`
	`6`	`+ return {`
	`7`	`+ value: this.counter++, // current value`
	`8`	`+ done: this.counter > 3 // boolean`
	`9`	`+ };`
	`10`	`+ }`
	`11`	`+};`
	`12`	`+`
	`13`	`+const step1 = asyncIterator.next();`
	`14`	`+const step2 = asyncIterator.next();`
	`15`	`+const step3 = asyncIterator.next();`
	`16`	`+const step4 = asyncIterator.next();`
	`17`	`+console.log({ step1, step2, step3, step4 });`

Lines changed: 35 additions & 0 deletions

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`@@ -0,0 +1,35 @@`
	`1`	`+'use strict';`
	`2`	`+`
	`3`	`+const iterable = {`
	`4`	`+ [Symbol.asyncIterator]() {`
	`5`	`+ let i = 0;`
	`6`	`+ const iterator = {`
	`7`	`+ async next() {`
	`8`	`+ return {`
	`9`	`+ value: i++,`
	`10`	`+ done: i > 3`
	`11`	`+ };`
	`12`	`+ }`
	`13`	`+ };`
	`14`	`+ return iterator;`
	`15`	`+ }`
	`16`	`+};`
	`17`	`+`
	`18`	`+// Usage`
	`19`	`+`
	`20`	`+const iterator = iterable[Symbol.asyncIterator]();`
	`21`	`+const step1 = iterator.next();`
	`22`	`+const step2 = iterator.next();`
	`23`	`+const step3 = iterator.next();`
	`24`	`+const step4 = iterator.next();`
	`25`	`+console.log({ step1, step2, step3, step4 });`
	`26`	`+`
	`27`	`+(async () => {`
	`28`	`+ for await (const step of iterable) {`
	`29`	`+ console.log({ step });`
	`30`	`+ }`
	`31`	`+})();`
	`32`	`+`
	`33`	`+(async () => {`
	`34`	`+ // console.log({ steps: [...iterable] });`
	`35`	`+})();`

Lines changed: 43 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,43 @@`
	`1`	`+'use strict';`
	`2`	`+`
	`3`	`+class Counter {`
	`4`	`+ constructor(begin, end, step = 1) {`
	`5`	`+ this.begin = begin;`
	`6`	`+ this.end = end;`
	`7`	`+ this.step = step;`
	`8`	`+ }`
	`9`	`+ [Symbol.asyncIterator]() {`
	`10`	`+ const end = this.end;`
	`11`	`+ let i = this.begin;`
	`12`	`+ const iterator = {`
	`13`	`+ async next() {`
	`14`	`+ return {`
	`15`	`+ value: i++,`
	`16`	`+ done: i > end`
	`17`	`+ };`
	`18`	`+ }`
	`19`	`+ };`
	`20`	`+ return iterator;`
	`21`	`+ }`
	`22`	`+}`
	`23`	`+`
	`24`	`+// Usage`
	`25`	`+`
	`26`	`+const iterable = new Counter(0, 3);`
	`27`	`+`
	`28`	`+const iterator = iterable[Symbol.asyncIterator]();`
	`29`	`+const step1 = iterator.next();`
	`30`	`+const step2 = iterator.next();`
	`31`	`+const step3 = iterator.next();`
	`32`	`+const step4 = iterator.next();`
	`33`	`+console.log({ step1, step2, step3, step4 });`
	`34`	`+`
	`35`	`+(async () => {`
	`36`	`+ for await (const step of iterable) {`
	`37`	`+ console.log({ step });`
	`38`	`+ }`
	`39`	`+})();`
	`40`	`+`
	`41`	`+(async () => {`
	`42`	`+ // console.log({ steps: [...iterable] });`
	`43`	`+})();`

Lines changed: 33 additions & 0 deletions

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`@@ -0,0 +1,33 @@`
	`1`	`+'use strict';`
	`2`	`+`
	`3`	`+const gen = async function* () {`
	`4`	`+ let i = 0;`
	`5`	`+ while (true) {`
	`6`	`+ if (i >= 3) return;`
	`7`	`+ yield i++;`
	`8`	`+ }`
	`9`	`+};`
	`10`	`+`
	`11`	`+{`
	`12`	`+ const iterable = gen();`
	`13`	`+ const iterator = iterable[Symbol.asyncIterator]();`
	`14`	`+ const step1 = iterator.next();`
	`15`	`+ const step2 = iterator.next();`
	`16`	`+ const step3 = iterator.next();`
	`17`	`+ const step4 = iterator.next();`
	`18`	`+ Promise.all([step1, step2, step3, step4]).then(steps => {`
	`19`	`+ console.log({ steps });`
	`20`	`+ });`
	`21`	`+}`
	`22`	`+`
	`23`	`+(async () => {`
	`24`	`+ const iterable = gen();`
	`25`	`+ for await (const step of iterable) {`
	`26`	`+ console.log({ step });`
	`27`	`+ }`
	`28`	`+})();`
	`29`	`+`
	`30`	`+(async () => {`
	`31`	`+ const iterable = gen();`
	`32`	`+ //console.log({ steps: [await ...iterable] });`
	`33`	`+})();`

Lines changed: 29 additions & 0 deletions

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	`1`	`+'use strict';`
	`2`	`+`
	`3`	`+const gen = async function* () {`
	`4`	`+ yield* [0, 1, 2];`
	`5`	`+};`
	`6`	`+`
	`7`	`+{`
	`8`	`+ const iterable = gen();`
	`9`	`+ const iterator = iterable[Symbol.asyncIterator]();`
	`10`	`+ const step1 = iterator.next();`
	`11`	`+ const step2 = iterator.next();`
	`12`	`+ const step3 = iterator.next();`
	`13`	`+ const step4 = iterator.next();`
	`14`	`+ Promise.all([step1, step2, step3, step4]).then(steps => {`
	`15`	`+ console.log({ steps });`
	`16`	`+ });`
	`17`	`+}`
	`18`	`+`
	`19`	`+(async () => {`
	`20`	`+ const iterable = gen();`
	`21`	`+ for await (const step of iterable) {`
	`22`	`+ console.log({ step });`
	`23`	`+ }`
	`24`	`+})();`
	`25`	`+`
	`26`	`+(async () => {`
	`27`	`+ const iterable = gen();`
	`28`	`+ //console.log({ steps: [await ...iterable] });`
	`29`	`+})();`

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