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27 lines
473 B
27 lines
473 B
function greeter1 (person: string) {
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return 'Hello, ' + person
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}
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let userr = 'Yee'
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console.log(greeter1(userr))
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//person:string 类型注释
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/**
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使用接口来描述一个拥有 firstName 和 lastName 字段的对象
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interface Person {
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firstName: string
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lastName: string
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}
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function greeter (person: Person) {
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return 'Hello, ' + person.firstName + ' ' + person.lastName
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}
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let user = {
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firstName: 'Yee',
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lastName: 'Huang'
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}
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console.log(greeter(user))
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*/
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