alexilyaev/objectKeysTyped.md

## objectKeysTyped.md

      
        
                
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              objectKeysTyped.md
            
          
        
      
      
    Object.keys() on a typed Object loses it's keys type
Playground with examples

Object.keys() on a typed Object loses it's keys type

How is it different than ts-extra > objectKeys?
Source file

Preserves the keys type of a typed object instead of getting a union of the
actual keys values (see playground)

TL;DR
/**
 * A strongly-typed version of `Object.keys()`
 *
 * Details:
 * https://gist.github.com/alexilyaev/3fe3e6e6065b9f19450ac52a11209f52
 */
export const objectKeysTyped = Object.keys as <Type extends object>(
  value: Type
) => Array<keyof typeof value>;