javascript - StimulusJS How to set an instance variable on connect - Stack Overflow

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I am trying to get into stimulusJS

import { Controller } from 'stimulus'

export default class extends Controller {

  static targets = [
    'foo',
  ]

  connect() {
    const fooValue = this.fooTarget.value
    console.log(this.fooValue) // 7
    this.someFunction()
  }

  someFunction(){
    console.log(this.fooValue) // undefined
  }

}

I want to be able to get this value on connect as I want to know if it has changed.

I am trying to get into stimulusJS

import { Controller } from 'stimulus'

export default class extends Controller {

  static targets = [
    'foo',
  ]

  connect() {
    const fooValue = this.fooTarget.value
    console.log(this.fooValue) // 7
    this.someFunction()
  }

  someFunction(){
    console.log(this.fooValue) // undefined
  }

}

I want to be able to get this value on connect as I want to know if it has changed.

• javascript
• stimulusjs

Share Improve this question Follow edited May 28, 2022 at 20:34 ggorlen 57.9k88 gold badges114114 silver badges157157 bronze badges asked Aug 12, 2020 at 17:46 MZaragozaMZaragoza 10.1k99 gold badges7474 silver badges116116 bronze badges

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1 Answer 1

Sorted by: Reset to default 11

Your code declares const variable within the scope of connect() function. But you should use this (Stimulus Controller) property instead:

...
  connect() {
    this.fooValue = this.fooTarget.value
...

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