Detects when user changes same config setting 3+ times within 24 hours. Shows non-intrusive prompt offering help with guided calibration flow. Guided calibration features: - Test for false positives (walk around room) - Test for missed motion (sit still) - Suggest optimal value based on diurnal baseline SNR and link health - Apply suggested value button Files: - dashboard/js/proactive.js: Complete implementation with localStorage tracking Acceptance: - Help prompt fires after 3+ changes in 24h - Calibration flow tests both directions - Suggests value based on system data - Apply button works
94 lines
1.9 KiB
Markdown
94 lines
1.9 KiB
Markdown
# onetime [](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 and extending `Function.prototype`.*
|
|
|
|
## Install
|
|
|
|
```
|
|
$ npm install onetime
|
|
```
|
|
|
|
## Usage
|
|
|
|
```js
|
|
const onetime = require('onetime');
|
|
|
|
let i = 0;
|
|
|
|
const foo = onetime(() => ++i);
|
|
|
|
foo(); //=> 1
|
|
foo(); //=> 1
|
|
foo(); //=> 1
|
|
|
|
onetime.callCount(foo); //=> 3
|
|
```
|
|
|
|
```js
|
|
const onetime = require('onetime');
|
|
|
|
const foo = onetime(() => {}, {throw: true});
|
|
|
|
foo();
|
|
|
|
foo();
|
|
//=> Error: Function `foo` can only be called once
|
|
```
|
|
|
|
## API
|
|
|
|
### onetime(fn, options?)
|
|
|
|
Returns a function that only calls `fn` once.
|
|
|
|
#### fn
|
|
|
|
Type: `Function`
|
|
|
|
Function that should only be called once.
|
|
|
|
#### options
|
|
|
|
Type: `object`
|
|
|
|
##### throw
|
|
|
|
Type: `boolean`\
|
|
Default: `false`
|
|
|
|
Throw an error when called more than once.
|
|
|
|
### onetime.callCount(fn)
|
|
|
|
Returns a number representing how many times `fn` has been called.
|
|
|
|
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)
|