match operator

Opérateur de correspondance

PHP a une structure de contrôle nommée match, qui a été introduite à partir de PHP8.0.

C'est comme une simplification de la structure de contrôle switch .

Exemple:

 $ food = ' strawberry ' ;
$ description = match ( $ food ) {
  ' apple ' => ' This food is an apple ' ,
  ' strawberry ' , ' raspberry ' => ' This food is a red fruit ' ,
}; // This food is a red fruit

$ food = ' unknown ' ;
$ description = match ( $ food ) {
  ' apple ' => ' This food is an apple ' ,
  ' strawberry ' , ' raspberry ' => ' This food is a red fruit ' ,
}; // UnhandledMatchError

$ food = ' unknown ' ;
$ description = match ( $ food ) {
  ' apple ' => ' This food is an apple ' ,
  ' strawberry ' , ' raspberry ' => ' This food is a red fruit ' ,
  default => ' This food is unknown ' ,
}; // This food is unknown

Usage

Ce package est une tentative de portage de cette structure de contrôle vers une fonction JS, de la manière la plus proche possible.

Exemple:

 import match from 'match-operator'

const food = 'strawberry'
const description = match ( food , [
  [ 'apple' , 'This food is an apple' ] ,
  [ 'strawberry' , 'raspberry' , 'This food is a red fruit' ] ,
] ) // This food is a red fruit

const food = 'unknown'
const description = match ( food , [
  [ 'apple' , 'This food is an apple' ] ,
  [ 'strawberry' , 'raspberry' , 'This food is a red fruit' ] ,
] ) // UnhandledMatchError

const food = 'unknown'
const description = match ( food , [
  [ 'apple' , 'This food is an apple' ] ,
  [ 'strawberry' , 'raspberry' , 'This food is a red fruit' ] ,
  [ match . default , 'This food is unknown' ]
] ) // This food is unknown 

Syntaxe alternative

Vous pouvez utiliser un éventail de sujets si vous le trouvez plus lisible.

 const description = match ( food , [
  [ [ 'strawberry' , 'raspberry' ] , 'This food is a red fruit' ] ,
] ) 

Installation

 npm install match-operator --save # If you're using NPM
yarn add match-operator # If you're using Yarn

Essais

 npm run test # If you're using NPM
yarn test # If you're using Yarn

Clause de non-responsabilité

Ceci est mon premier package Typescript - s'il vous plaît soyez gentil !

Licence

MIT.