gnezim
60e2149072
Tasks 16-20: Online Board Tests (Search/Filter, Tabs, Flight List, Details Modal, Time/Date) - Task 16: Search & Filter tests (37 tests) - departure/arrival cities, passenger count, cabin class - Task 17: Arrival/Departure Tabs tests (45 tests) - tab switching, flight display, sorting - Task 18: Flight List View tests (50 tests) - display, sorting, filtering, pagination, loading states - Task 19: Flight Details Modal tests (40 tests) - opening/closing, content display, actions - Task 20: Time & Date Filter tests (43 tests) - date selection, time ranges, calendar navigation Tasks 21-25: Flight Details Tests (Flight Info, Passengers, Seats, Services, Fares) - Task 21: Flight Info Display tests (40 tests) - basic info, airports, route visualization, timeline - Task 22: Passenger Info tests (50 tests) - passenger list, details, services, special requirements - Task 23: Seat Selection tests (50 tests) - seat map, selection, categories, recommendations - Task 24: Service Selection tests (25 tests) - baggage, meals, seats, summary - Task 25: Fare Display tests (55 tests) - fare breakdown, comparisons, discounts, refunds All tests follow AAA pattern and use data-testid selectors matching Angular version. Total: 245 tests across 10 feature suites.
89 lines
1.3 KiB
Markdown
89 lines
1.3 KiB
Markdown
# onetime
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> Ensure a function is only called once
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When called multiple times it will return the return value from the first call.
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*Unlike the module [once](https://github.com/isaacs/once), this one isn't naughty and extending `Function.prototype`.*
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## Install
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```sh
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npm install onetime
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```
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## Usage
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```js
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import onetime from 'onetime';
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let index = 0;
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const foo = onetime(() => ++index);
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foo(); //=> 1
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foo(); //=> 1
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foo(); //=> 1
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onetime.callCount(foo); //=> 3
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```
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```js
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import onetime from 'onetime';
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const foo = onetime(() => {}, {throw: true});
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foo();
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foo();
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//=> Error: Function `foo` can only be called once
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```
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## API
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### onetime(fn, options?)
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Returns a function that only calls `fn` once.
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#### fn
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Type: `Function`
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The function that should only be called once.
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#### options
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Type: `object`
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##### throw
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Type: `boolean`\
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Default: `false`
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Throw an error when called more than once.
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### onetime.callCount(fn)
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Returns a number representing how many times `fn` has been called.
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Note: It throws an error if you pass in a function that is not wrapped by `onetime`.
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```js
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import onetime from 'onetime';
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const foo = onetime(() => {});
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foo();
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foo();
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foo();
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console.log(onetime.callCount(foo));
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//=> 3
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```
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#### fn
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Type: `Function`
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The function to get call count from.
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