Clean up the oopsie. Rebuild the blank exercises.

This commit is contained in:
Michael Frank
2021-05-09 00:39:21 +12:00
parent b984cb4c6f
commit d28d80c46f
1565 changed files with 27186 additions and 199003 deletions
+44 -15
View File
@@ -1,32 +1,36 @@
# onetime [![Build Status](https://travis-ci.org/sindresorhus/onetime.svg?branch=master)](https://travis-ci.org/sindresorhus/onetime)
# onetime [![Build Status](https://travis-ci.com/sindresorhus/onetime.svg?branch=master)](https://travis-ci.com/github/sindresorhus/onetime)
> Ensure a function is only called once
When called multiple times it will return the return value from the first call.
*Unlike the module [once](https://github.com/isaacs/once), this one isn't naughty extending `Function.prototype`.*
*Unlike the module [once](https://github.com/isaacs/once), this one isn't naughty and extending `Function.prototype`.*
## Install
```
$ npm install --save onetime
$ npm install onetime
```
## Usage
```js
const onetime = require('onetime');
let i = 0;
const foo = onetime(() => i++);
const foo = onetime(() => ++i);
foo(); //=> 0
foo(); //=> 0
foo(); //=> 0
foo(); //=> 1
foo(); //=> 1
foo(); //=> 1
onetime.callCount(foo); //=> 3
```
```js
const onetime = require('onetime');
const foo = onetime(() => {}, {throw: true});
foo();
@@ -35,10 +39,9 @@ foo();
//=> Error: Function `foo` can only be called once
```
## API
### onetime(fn, [options])
### onetime(fn, options?)
Returns a function that only calls `fn` once.
@@ -50,16 +53,42 @@ Function that should only be called once.
#### options
Type: `Object`
Type: `object`
##### throw
Type: `boolean`<br>
Type: `boolean`\
Default: `false`
Throw an error when called more than once.
### onetime.callCount(fn)
## License
Returns a number representing how many times `fn` has been called.
MIT © [Sindre Sorhus](https://sindresorhus.com)
Note: It throws an error if you pass in a function that is not wrapped by `onetime`.
```js
const onetime = require('onetime');
const foo = onetime(() => {});
foo();
foo();
foo();
console.log(onetime.callCount(foo));
//=> 3
```
#### fn
Type: `Function`
Function to get call count from.
## onetime for enterprise
Available as part of the Tidelift Subscription.
The maintainers of onetime and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-onetime?utm_source=npm-onetime&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)