Control flow analysis of aliased conditions, an exciting new feature shipped with TypeScript 4.4, enables you to write more expressive, readable code.

An exciting feature is shipping with TypeScript 4.4. It’s called control flow analysis of aliased conditions, which is quite a mouthful.

In this post, we’ll unpack this new feature and demonstrate how it contributes to improving the readability of code.

• Indirect type narrowing via const
• Writing more expressive code with TypeScript 4.4

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