如何访问具有 5 个同名变量的 json 值

Question

I'm making a NSFW filter and i need the results of the analysis, i need to verify if Pºrn and Hºntie are higher than 0.7, but i dont know how to access the percent value because its all the same

i first declare it with this:

let pred = await model.classify(image)

and returns something like this:

[
  { className: 'Drawing', probability: 0.8663265705108643 },
  { className: 'H*ntai', probability: 0.13287211954593658 },
  { className: 'Neutral', probability: 0.0006077145808376372 },
  { className: 'P*rn', probability: 0.0001762539177434519 },
  { className: 'S*xy', probability: 0.000017335718439426273 }
]

and because they're the same i dont know how to detect the values of probability of only pºrn and hºntie to check if one of them are higher than 0.7, i hope this doesn't get marked bad.

Answer 1

What you could do is find using Array.prototype.find() each entry for 'Porn' and 'Hentai' . Then you can compare the probability of each one:

const porn   = pred.find(r => r.className === 'Porn');
const hentai = pred.find(r => r.className === 'Hentai');

// The Math.max is another way of doing:
// if (porn.probability > 0.7 || hentai.probability > 0.7) { ... }

if (Math.max(porn.probability, hentai.probability) > 0.7) {
  // do something
}

Also if the function model.classify() is under your control, you could make it return an Object instead of an Array like this:

{
  drawing: { probability: 0.8663265705108643 },
  hentai:  { probability: 0.13287211954593658 },
  neutral: { probability: 0.0006077145808376372 },
  porn:    { probability: 0.0001762539177434519 },
  sexy:    { probability: 0.000017335718439426273 }
}

and access each probability like so:

if (pred.hentai.probability > 0.7 || pred.porn.probability > 0.7) {
  // do something
}

Answer 2

You can find the probability of the P*rn class name like this:

if (results.find(result => result.className == 'P*rn').probability > 0.7) {
  // some stuff
}