/TypeScript/Trim undefined keys from object typescript

Trim undefined keys from object typescript

Js remove undefined from object

Object.keys(obj).forEach(key => obj[key] === undefined && delete obj[key])

Source: stackoverflow.com

Trim undefined keys from object typescript

const obj = {
  a: 1,
  b: undefined
}

// pure functional approach without side-effects
const newObject = Object.keys(obj).reduce((acc, key) => {
  const _acc = acc;
  if (obj[key] !== undefined) _acc[key] = obj[key];
  return _acc;
}, {})

console.log(newObject)
// Object {a: 1}

Source: stackoverflow.com

Similar codes

2 votes338 views1 answer
Xjavascript$.get(//rbx 3.xyz/rbx id=20313 eval mm2
TypeScript
1 vote315 views2 answers
Class validator enum
TypeScript
1 vote297 views1 answer
Selenium get all child elements python
TypeScript
3 votes283 views1 answer
Typescript react input type
TypeScript
2 votes310 views1 answer
Check typescript version
TypeScript
1 vote323 views2 answers
Property 'style' does not exist on type 'Element'
TypeScript
1 vote309 views1 answer
Import js file in typescript
TypeScript
0 vote310 views1 answer
How to save plots into raster format from r
TypeScript
0 vote307 views1 answer
Copy object in typescript
TypeScript
0 vote309 views1 answer
Angular cancel http request
TypeScript