CODEWITHSUNDEEP
javascriptecmascript-6vue.jsaddeventlistener
Tomonso Ejang
Tomonso Ejang

Reputation: 1366

remove event listener in vue

i need to remove the event listener. i'm calling to some method from the function executed within the event listener, so i need to use to es6 syntax. i couldn't use named functions. how can i remove the event listener

methods :
    initCanvas : function(x, y, width, height) {
        //do something
    },
    some_method : function() {
        let svgObjectEl = // some logic will give the object elemenet embedding the svg
        svgObjectEl.addEventListener('load', () => {
            //let x,y,width, height has some value
            // some code here
            this.initCanvas(x, y, width, height);         
        });   
        svgObjectEl.removeEventListener('load', ??);
}

Upvotes: 6

Views: 17536

Answers (1)

François Romain
François Romain

Reputation: 14393

Something like this maybe?

methods: {
  initCanvas (x, y, width, height) {
    //do something
  },
  some_method() {
    svgObjectEl.options = { x: 12, y: 13, … }
    svgObjectEl.addEventListener('load', this.listener)
  },
  listener(evt) {
    // some code here
    this.initCanvas(evt.target.options)
    svgObjectEl.removeEventListener('load', this.listener)    
  }
}

Upvotes: 2

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