What this snippet does
The generic Array<T> syntax is an alternative way to define arrays and is common in enterprise codebases.
Expected output
[ 102, 103 ]
Why practise typing this
Typing basic types code builds muscle memory for the symbols and indentation TypeScript uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
More TypeScript practice
- Declaring variables with primitive typesBasic Types · beginner
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- Assigning a string to a number variableBasic Types · beginner
- Defining an array of numbersBasic Types · beginner
- Pushing a wrong type to a typed arrayBasic Types · beginner
- Declaring a fixed-length tupleBasic Types · beginner