Cannot use 'in' operator to search for ... in null

[zarmin]

const diff = require('microdiff').default
const a1 = {"a": { "b": 1 }}
const a2 = {"a": null}
console.log(diff(a1, a2))

/Users/.../node_modules/microdiff/dist/index.cjs:8
		if (!(key in newObj)) {
		          ^

TypeError: Cannot use 'in' operator to search for 'b' in null

[AsyncBanana]

Thanks for reporting this! I will work on a fix, it should not take long.

[AsyncBanana]

Ok, this should be fixed now. Let me know if you continue to have problems with this in version v1.1.1+.

[AbdallahAbis]

@AsyncBanana I'm having same issue in "microdiff": "^1.3.2"

[AsyncBanana]

Could you send me the relevant code?

[AndreyMay]

Getting the same issue (comparing arrays of objects with arrays inside). It happens when the root object is undefined or null (might want to check that).

[AsyncBanana]

Microdiff expects basic objects or arrays. I would handle any other values before passing them to the diff function.