Insert value as object on null

[Methuselah96]

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Migrated from don't!
Originally created by @piyaleemaiti on Fri, 08 May 2020 05:29:24 GMT

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What happened

const original = { x: { y: null}}
setIn(original, ['x', 'y', 'z'], 456)

Here the old value was set to null, but I wanted to insert object value replace of null, how can I do that?

[Methuselah96]

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Migrated from don't reference!
Original comment by @piyaleemaiti on Sat, 15 Aug 2020 14:08:51 GMT

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Thanks @Methuselah96, I will try your suggestion.

[Methuselah96]

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Migrated from don't reference!
Original comment by @bdurrer on Mon, 22 Jun 2020 11:15:02 GMT

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Please use stackoverflow for questions. The issues on github are meant for bug/improvment reports.

PS: You likely forgot to assing the returned new collection:
notOriginalAnymore = setIn(original, ['x', 'y', 'z'], 456)

[Methuselah96]

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Migrated from don't reference!
Original comment by @Methuselah96 on Fri, 14 Aug 2020 20:19:42 GMT

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@piyaleemaiti I think the only way to do what you're asking is to provide the object value you want to replace null with like this:

const original = { x: { y: null}}
const result = setIn(original, ['x', 'y'], { z: 456 })