(regressions) Property 'something' does not exist on type '{}' and Types of parameters 'field' and 'value' are incompatible

[pocesar]

TypeScript Version: nightly (2.6.0-dev.20171004)

Code

Many things broke (on unchanged code) when using lodash type definitions with latest nightly. The inferring is kinda broken (and it's not allowing parameters to be overloaded)

Expected behavior:

To work:

[].forEach((field: keyof Data.AddressDataSetMixin) => {
 //...
})
//...
_.reduce(citizens, (name, citizen) => {
 if (citizen.address && citizen.address.id === address.id) {
 return citizen.name
 }
 return ''
 }, '')
//...
const findBase = (field: string) => {
 return _.find(definitions, (def) => def.field === field)!.id
}

Actual behavior:

Doesnt:

[].forEach((field: keyof Data.AddressDataSetMixin) => {
 //...
 /*
[ts]
Argument of type '(field: "number" | "id" | "name" | "date" | "type" | "street" | "full" | "picture" | "cadastrador...' is not assignable to parameter of type '(value: string, index: number, array: string[]) => void'.
 Types of parameters 'field' and 'value' are incompatible.
 Type 'string' is not assignable to type '"number" | "id" | "name" | "date" | "type" | "street" | "full" | "picture" | "cadastrador" | "las...'.
 */
})
//...
_.reduce(citizens, (name, citizen) => {
/*
Argument of type '(name: string, citizen: RemoteArrayProxy<CitizenDataSet>) => string | undefined' is not assignable to parameter of type 'MemoIterator<RemoteArrayProxy<CitizenDataSet>, string | undefined>'.
 Types of parameters 'name' and 'prev' are incompatible.
 Type 'string | undefined' is not assignable to type 'string'.
 Type 'undefined' is not assignable to type 'string'.'
*/
 if (citizen.address && citizen.address.id === address.id) {
 return citizen.name
 }
 return ''
 }, '')
// ...
const findBase = (field: string) => {
 /*
 Property 'field' does not exist on type '{}'
 */
 return _.find(definitions, (def) => def.field === field)!.id
}

Was probably broken by #18654? See if setting "strictFunctionTypes": false works.

[pocesar]

yes, it works