What is the best way to prevent duplicating a function inside a loop that retrieves a participant with a specific name matching the current looped item?

Question

What is the best way to prevent duplicating a function inside a loop that retrieves a participant with a specific name matching the current looped item?

My question couldn't fit in the title, so here it is.

Currently, I have a loop that generates a div element for each match, and within that div, I want to display the information of ONE of the 10 match participants. To achieve this, I am using a function that returns the object of a participant with a specific name. However, as shown below, every time I need to access a property of that participant, I have to repeatedly call the function.

I don't believe this is the most efficient approach, right? My front-end framework of choice is Vue.js.

The code I currently have is as follows:

Loop:

<div v-for='match in summonerMatches.matches'>
    {{ findParticipant(match).championId }}
    {{ findParticipant(match).spell1Id }}
    {{ findParticipant(match).spell12d }}
</div>

Function:

findParticipant(match){
    let participantId = match.details.participantIdentities.find(x => x.player.summonerName === this.summonerInfo.name).participantId;
    let participant = match.details.participants.find(x => x.participantId === participantId)

    return participant
}

If this function was not inside a loop, I could simply store the participant object and then utilize it. However, since it's within a loop, I'm unsure how to go about achieving this more efficiently.

javascript vue.js vuejs2

Answer 1

Answer №1

Create a special property called computed that will hold all the participants in an array. Here is an example of how you can do this:

data() {
...
},
computed: {
    participants() {
        return this.summonerMatches.matches.map(match => this.findParticipant(match))
    }
}

After setting up the computed property, you can then iterate over the participants in your template. Here's how you can do it:

<div v-for="participant in participants">
    {{ participant.championId }}
    {{ participant.spell1Id }}
    {{ participant.spell2Id }}
</div>

Answer 2

Create a special property called computed that will hold all the participants in an array. Here is an example of how you can do this:

data() {
...
},
computed: {
    participants() {
        return this.summonerMatches.matches.map(match => this.findParticipant(match))
    }
}

After setting up the computed property, you can then iterate over the participants in your template. Here's how you can do it:

<div v-for="participant in participants">
    {{ participant.championId }}
    {{ participant.spell1Id }}
    {{ participant.spell2Id }}
</div>

Answer 3

Answer №2

To efficiently display participant information, consider iterating through a pre-loaded object list in a loop.

Writing from my mobile, hoping to clarify...

An optimal approach involves backend querying to filter and load participant objects without redundancy. The front-end view should focus solely on displaying data, avoiding unnecessary processing.

To prevent duplicate divs, consider generating divs using unique participant IDs as identifiers. This way, you can avoid creating new divs unnecessarily by checking for existing ones within the HTML page.

Answer 4

To efficiently display participant information, consider iterating through a pre-loaded object list in a loop.

Writing from my mobile, hoping to clarify...

An optimal approach involves backend querying to filter and load participant objects without redundancy. The front-end view should focus solely on displaying data, avoiding unnecessary processing.

To prevent duplicate divs, consider generating divs using unique participant IDs as identifiers. This way, you can avoid creating new divs unnecessarily by checking for existing ones within the HTML page.

What is the best way to prevent duplicating a function inside a loop that retrieves a participant with a specific name matching the current looped item?

Answer №1

Answer №2

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