并行执行张量重塑

Question

是否可以并行或以更有效的方式使用const db = require('../db/index') const read = (input) => { console.log(`* models | read | input:`, input) if (input === 'nibs') { console.log(`* models.read called on 'nibs'`) return db.nibs.find() // (originally tried w/ and w/o .exec(), w/ no luck } } module.exports = { read, // ... } 函数？

例如，我有一个张量列表，想要将它们重塑为一种特定的格式（每个张量可以重塑为一种不同的格式）。我可以通过列表理解来做到这一点，但这很慢。

const Promise = require('bluebird') // breaks w/o this
const mongoose = require('mongoose')

// ...

const nibSchema = new mongoose.Schema({
  _id: mongoose.Schema.Types.ObjectId,
  category: { type: String, required: true },
  date: { type: Date, required: true , default: Date.now() },
  source: { type: String, required: true },
  title: { type: String, required: true },
  body: { type: String, required: true },
  tags: { type: Array, required: false }
})

const nibs = mongoose.model('nibs', nibSchema)

module.exports = {
  nibs
}