Update: Concat #47
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Update: Concat #47
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lax4mike
approved these changes
Jun 28, 2023
| expectType<string>(concat(__, 'DEF' as string)('ABC' as string)); | ||
| expectType<string>(concat('ABC' as string, 'DEF' as string)); | ||
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| expectType<number[]>([1, 2, 3].concat([4, 5, 6])); |
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I like how you put the native .concat in here too for reference!
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This update aligns the type def for
concatto match the nativeArray#concat()method. Specifically to disallow concatenation of arrays of different types. That existing type def forconcatwas not typesafe and it should have never been thatIt also improves the types for concat on strings a bit