[Vuejs]-How can I use one variable with another in Vue JavaScript?

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When attempting to access data from an object with a variable, you can use bracket notation instead of dot notation.

So for you, you can do

const n = this.prac
const x = this.oa
console.log(x)
console.log(n[0][x])

Which should result in the value you’re looking for.

I found this wonderful answer here How can I access and process nested objects, arrays or JSON? that gives more details and background on why this works.

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