Created
August 4, 2021 12:15
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TypeScript Decorators #101
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| // @experimentalDecorators | |
| console.clear(); | |
| function computeFullName() { | |
| return function (target: any, propertyKey: string, descriptor: PropertyDescriptor) { | |
| // target is the class name | |
| // propertyKey is the method name in the class | |
| // This is the method func itself | |
| let originalMethod: Function = descriptor.value; | |
| // console.log(originalMethod) | |
| descriptor.value = function(args: Record<string, string>) { | |
| args.fullName = `${args?.firstName || 'First Name'} ${args?.lastName || 'Last Name'}`; | |
| // Here we would ideally want to return the func/method itself with the changes such as its args | |
| return args; | |
| } | |
| return descriptor; | |
| }; | |
| } | |
| // Uncomment below to see it working in your console | |
| /* | |
| class ExampleClass { | |
| @computeFullName() | |
| someMethodName(params: Record<string, string>) { | |
| const { fullName } = params; | |
| return `Hello, ${params.fullName}`; | |
| } | |
| } | |
| const testClass = new ExampleClass(); | |
| const myName = testClass.someMethodName({ | |
| firstName: 'John', | |
| lastName: 'Smith', | |
| }); | |
| console.log(myName) | |
| */ | |
| // Todo | |
| // class someDummyClass { | |
| // @mergeObjectArgs() | |
| // whatIsYourName(params: Record<string, string>) { | |
| // } | |
| // } |
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