All posts on October, 2017


What’s new in TypeScript 2.6

Version 2.6 of Microsoft’s TypeScript language has moved to a release candidate stage. The new release of the typed superset of JavaScript features improvements such as increased strictness to help developers better find mistakes.

TypeScript 2.6 introduces a “strict” mode flag, which is identified as —strictFunctionTypes. In strict mode, any function type that does not originate from a method has its parameters compared “contravariantly,” Microsoft’s Daniel Rosenwasser, program manager for TypeScript, said.

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