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https://github.com/tngan/gengenerator
A useless generator
https://github.com/tngan/gengenerator
Last synced: 18 days ago
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A useless generator
- Host: GitHub
- URL: https://github.com/tngan/gengenerator
- Owner: tngan
- License: mit
- Created: 2016-06-04T15:18:38.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2016-06-04T15:26:11.000Z (over 8 years ago)
- Last Synced: 2024-10-13T17:06:52.474Z (about 1 month ago)
- Language: JavaScript
- Size: 2.93 KB
- Stars: 0
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# gengenerator
gengenerator is a useless generator. Don't be serious. Here is also a repository to collect examples for ES6 generator.
### Install
To install the stable version
```bash
$ npm install gengenerator
```
### Examples
Define a global gengenerator
```javascript
const gengenerator = require('gengenerator');
```
**gengenerator(any, generator)**
`any` can be any primitive data types
`generator` is a generator function with one parameter
- **Infinite counter**
```javascript
const counter = gengenerator({ count: 0 }, function * f(init) {
while(1) {
yield init.count++;
}
});
console.log(counter.next().value); // 0
console.log(counter.next().value); // 1
console.log(counter.next().value); // 2
```
- **Ticket number generator**
```javascript
const ticker = gengenerator({
index: 1,
day: new Date().toISOString().substring(0, 10)
}, function * f(init) {
while(1) {
let today = new Date().toISOString().substring(0, 10);
if(init.day !== today) {
init.day = today;
init.index = 1;
}
yield `${init.day}-${init.index++}`;
}
});
console.log(ticker.next().value); // 2016-01-01-1
console.log(ticker.next().value); // 2016-01-01-2
console.log(ticker.next().value); // 2016-01-01-3
// Run in next day, maybe change your system time right now and test it
console.log(ticker.next().value); // 2016-01-02-1
```
- **Guess the Numbers Puzzle**
Intercept a value with `.next`. Guess a number between 1 and 100.
```javascript
const bingo = gengenerator({
min: 0,
max: 101,
bonus: 30, // You can make it random
}, function * f(init) {
const io = (min, max) => `${min} - ? - ${max}`;
while(1) {
let input = yield io(init.min, init.max);
if(input <= init.min || input >= init.max) {
console.log('Wrong input, input again');
}
if(input === init.bonus) {
return 'Bingo!';
}
if(input < init.bonus && input > init.min) {
init.min = input;
} else if(input > init.bonus && input < init.max) {
init.max = input;
}
}
});
bingo.next(); // Start the game
console.log(bingo.next(31).value); // 0 - ? - 31
console.log(bingo.next(29).value); // 29 - ? - 31
console.log(bingo.next(30).value); // Bingo!
```
Have fun !
### Contribute
We're happy to discuss and see suggestions. Feel free to contribute in order to see the power of generator.
### License
[MIT](LICENSE)
### Copyright
Copyright (C) 2016 Tony Ngan, released under the MIT License.