Delay the execution of @mouseover in Vue: a guide to managing scope

Question

Delay the execution of @mouseover in Vue: a guide to managing scope

Looking to implement an action only when the user has hovered over a div for at least 1 second. Here's how it's set up:

<div @mouseover="trigger"></div>

In the script section:

data() {
    return {
        hovered: false
    }
}

methods: {
    trigger() {
        setTimeout(function(){ this.hovered = true }, 1000)
    }
}

My issue lies in understanding the scope within Vue. The 'hovered' variable is not recognized within the function, causing errors. Any suggestions on how to resolve this?

javascript scope vue.js delay mouseover

Answer 1

Answer №1

Did you consider utilizing an arrow function within your setTimeout? This will preserve the context of this.

data() {
    return {
        isHovered: false
    }
}

methods: {
    initiateHover() {
        setTimeout(() => { this.isHovered = true }, 1000)
    }
}

Answer 2

Did you consider utilizing an arrow function within your setTimeout? This will preserve the context of this.

data() {
    return {
        isHovered: false
    }
}

methods: {
    initiateHover() {
        setTimeout(() => { this.isHovered = true }, 1000)
    }
}

Answer 3

Answer №2

<div @mouseover="triggerOverEvent" @mouseleave="resetOverEvent "> events </div>



data: () => {
    return {
      mouseOverCount: 0
    }
  },
methods: {
    triggerOverEvent () {
      this.mouseOverCount++
      if (this.mouseOverCount < 2) {
        this.showPopup()
      }
      console.log(this.mouseOverCount)
    },
    resetOverEvent () {
      this.mouseOverCount = 0
      console.log('reset')
    },
}

Answer 4

<div @mouseover="triggerOverEvent" @mouseleave="resetOverEvent "> events </div>



data: () => {
    return {
      mouseOverCount: 0
    }
  },
methods: {
    triggerOverEvent () {
      this.mouseOverCount++
      if (this.mouseOverCount < 2) {
        this.showPopup()
      }
      console.log(this.mouseOverCount)
    },
    resetOverEvent () {
      this.mouseOverCount = 0
      console.log('reset')
    },
}

Answer 5

Answer №3

Code to display content upon hovering for 1 second, and then hide it when no longer hovered.

<span @mouseover="activate" @mouseleave="deactivate">Hover over me!</span>
<div v-if="display">...</div>

data() {
   return {
      display: false;
      isHovering: false,
   };
},
methods: {
    activate() {
       this.isHovering = true;
       setTimeout(() => this.display = this.isHovering, 1000);
    },
    deactivate() {
       this.isHovering = false;
       this.display = false;
    },
}

Answer 6

Code to display content upon hovering for 1 second, and then hide it when no longer hovered.

<span @mouseover="activate" @mouseleave="deactivate">Hover over me!</span>
<div v-if="display">...</div>

data() {
   return {
      display: false;
      isHovering: false,
   };
},
methods: {
    activate() {
       this.isHovering = true;
       setTimeout(() => this.display = this.isHovering, 1000);
    },
    deactivate() {
       this.isHovering = false;
       this.display = false;
    },
}

Answer 7

Answer №4

Trying to tackle the issue of selecting items in a list only when the user hovers for a certain amount of time (to prevent menu flickering)

Pug template:

.div(
    @mouseover="select(identifier)"
    @mouseout="clear()"
) {{content}}

Data:

hovered: false
selectedId: ""

Along with the following methods:

select(identifier) {
    this.selectedId = identifier
    setTimeout(() => {
        if(this.selectedId === identifier )
            this.hovered = true
        },
        1000
    )
},
clear() {
    this.selectedId = ''
}

The strategy involves verifying if the item being hovered on by the user is the same as the one from a second ago.

Answer 8

Trying to tackle the issue of selecting items in a list only when the user hovers for a certain amount of time (to prevent menu flickering)

Pug template:

.div(
    @mouseover="select(identifier)"
    @mouseout="clear()"
) {{content}}

Data:

hovered: false
selectedId: ""

Along with the following methods:

select(identifier) {
    this.selectedId = identifier
    setTimeout(() => {
        if(this.selectedId === identifier )
            this.hovered = true
        },
        1000
    )
},
clear() {
    this.selectedId = ''
}

The strategy involves verifying if the item being hovered on by the user is the same as the one from a second ago.

Answer 9

Answer №5

To utilize outdated syntax, ensure 'this' is bound to the setTimeout function

data() {
    return {
        highlighting: false
    }
}

methods: {
    activate() {
        setTimeout(function(){ this.highlighting = true }.bind(this), 1000)
    }
}

Answer 10

To utilize outdated syntax, ensure 'this' is bound to the setTimeout function

data() {
    return {
        highlighting: false
    }
}

methods: {
    activate() {
        setTimeout(function(){ this.highlighting = true }.bind(this), 1000)
    }
}

Delay the execution of @mouseover in Vue: a guide to managing scope

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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