Typescript difference between using type check and generic [duplicate]

Question

I'm in the middle of a typescript course. We're learning generics and the following example is shown

const hobbies: Array<string> = ['coding', 'eating']

Now before I learned to check an array of type using the following syntax

const hobbies: string[] = ['coding', 'eating']

Can anyone explain me what the difference is?

Nicholas Tower · Accepted Answer · 2019-01-20 03:21:46Z

2

Those two mean the same thing. So i can see that as a useful example for introducing the concept of generics, since it takes a concept you're already familiar with (arrays) and shows another way it can be done. But generics can also be used in a broader range of contexts than just arrays.

answered Jan 20, 2019 at 3:21

Nicholas Tower

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2 Comments

Miguel Stevens Over a year ago

What's the preferred method you think?

inyono Over a year ago

The way I handle it: simple types with string[], more complicated types (e.g. union types, in-line object types) w/ Array<string l number> since it’s more readable in my opinion.

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