It might be more helpful for you to take a look at the VueJS code related to this and then I can provide some explanation:
new Vue({
el: '#app',
data: {
history: [
{name: 'red', value: '#f00'},
{name: 'not red', value: '#ff0'},
{name: 'also not red', value: '#f0f'},
],
},
components: {
ColorItem: {
template:
`<div>
<input :value="name">
<div class="color-preview" :style="{backgroundColor:hex}"></div>
<span v-html="hex"></span>
<button @click="$emit('remove')">
<i class="fas fa-trash"></i>
</button>
</div>`,
props:
['mode', 'hex', 'name'],
methods: {
removeColor: function(index) {
console.log(index);
this.history.splice(index, 1);
}
},
}
},
// ...
}
I have different objects representing colors along with their names and values stored in an array called history within my Vue application. Using v-for, I'm creating a new color-item component for each item in the history:
<div v-for="(item, index) in history" :key="item.value">
<color-item mode="history" :name="item.name" :hex="item.value" @remove="removeColor(index)">
</color-item>
</div>
In my attempt to remove a color from the list, I came across this wonderful example that demonstrates how to efficiently eliminate items from a list using Vue by referencing their positions and splicing them out. Additionally, I found guidance in this Stack Overflow response explaining how to obtain the position using the map function. However, I encountered issues with e.hex being undefined, likely due to Vue utilizing getter methods internally rather than providing direct access to the data.
Before suggesting integrating the component template inside the v-for loop, it's important for me to keep the template separate so it can be reused for other color lists (such as favorites).
Being relatively new to Vue, I apologize if my terminology is not accurate, and I welcome any guidance to improve my understanding of this framework.