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Creating a CLI in Node.js just takes a extra step or two because they are really just an ordinary Node.js app wrapped behind a bin command. For this e 阅读全文
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Implement the JavaScript Array.includes function in the type system. A type takes the two arguments. The output should be a boolean true or false. For 阅读全文
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Implement the JavaScript Array.concat function in the type system. A type takes the two arguments. The output should be a new array that includes inpu 阅读全文
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Implement a utils If which accepts condition C, a truthy return type T, and a falsy return type F. C is expected to be either true or false while T an 阅读全文
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If we have a type which is wrapped type like Promise. How we can get a type which is inside the wrapped type? For example: if we have Promise<ExampleT 阅读全文
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Implement the built-in Exclude<T, U> For example: type Result = MyExclude<'a' | 'b' | 'c', 'a'> // 'b' | 'c' /* _____________ Your Code Here _________ 阅读全文
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For given a tuple, you need create a generic Length, pick the length of the tuple For example: type tesla = ['tesla', 'model 3', 'model X', 'model Y'] 阅读全文
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Implement a generic First<T> that takes an Array T and returns it's first element's type. type arr1 = ['a', 'b', 'c'] type arr2 = [3, 2, 1] type head1 阅读全文
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If you cannot catch those pesky errors for any reason. Maybe some lib is throwing them and you can't catch them. You can use: process.on('uncaughtExce 阅读全文