csv-generate/lib/api/types.js

CSV and object generation implementing the Node.js `stream.Readable` API

import { random } from "./random.js";

const types = {
  // Generate an ASCII value.
  ascii: function ({ options }) {
    const column = [];
    const nb_chars = Math.ceil(random(options) * options.maxWordLength);
    for (let i = 0; i < nb_chars; i++) {
      const char = Math.floor(random(options) * 32);
      column.push(String.fromCharCode(char + (char < 16 ? 65 : 97 - 16)));
    }
    return column.join("");
  },
  // Generate an integer value.
  int: function ({ options }) {
    return Math.floor(random(options) * Math.pow(2, 52));
  },
  // Generate an boolean value.
  bool: function ({ options }) {
    return Math.floor(random(options) * 2);
  },
};

export { types };