Issue with Vue.js Typescript when setting a debounced function

Question

Issue with Vue.js Typescript when setting a debounced function

Upon debouncing a function in my Vue.js application, I encountered the following error message:

Type 'DebouncedFunc<(queryParams: QueryParams, page?: number) => Promise<void>>' is not assignable to type '(queryParams: QueryParams, page?: number) => Promise<void>'

As I tried to implement the debounce feature, I faced this issue.

created() {
    newData = _.debounce(newData 1000)
  }

Is there a solution to this problem without resorting to TS-ignore or making extensive changes?

Your input is greatly appreciated.

javascript typescript vue.js web frontend

Answer 1

Answer №1

The error message you encountered suggests that the debounced function's type does not match the expected type.

To resolve this issue, it is important to ensure that the debounced function has the correct type assigned to it.

One solution is to explicitly specify the type of the debounced function using the DebouncedFunc type from the lodash library. Here's an example of how you can define the type of the debounced function:

import { DebouncedFunc } from 'lodash'

created() {
  const debouncedNewData: DebouncedFunc<(queryParams: QueryParams, page?: number) => Promise<void>> = _.debounce(this.newData, 1000)
}

Alternatively, you can also directly define the type of the function being debounced, like so:

created() {
  const newDataFn: (queryParams: QueryParams, page?: number) => Promise<void> = this.newData
  const debouncedNewData = _.debounce(newDataFn, 1000)
}

Answer 2

The error message you encountered suggests that the debounced function's type does not match the expected type.

To resolve this issue, it is important to ensure that the debounced function has the correct type assigned to it.

One solution is to explicitly specify the type of the debounced function using the DebouncedFunc type from the lodash library. Here's an example of how you can define the type of the debounced function:

import { DebouncedFunc } from 'lodash'

created() {
  const debouncedNewData: DebouncedFunc<(queryParams: QueryParams, page?: number) => Promise<void>> = _.debounce(this.newData, 1000)
}

Alternatively, you can also directly define the type of the function being debounced, like so:

created() {
  const newDataFn: (queryParams: QueryParams, page?: number) => Promise<void> = this.newData
  const debouncedNewData = _.debounce(newDataFn, 1000)
}

Issue with Vue.js Typescript when setting a debounced function

Answer №1

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