Simple logger for browser side

Logger.js

/* eslint-disable no-console, consistent-return */

const logger = (function Logger() {
  const prefix = "[MYAPP]";
  const logLevelPreset = [
    'SILENT',
    'ERROR',
    'WARN',
    'INFO',
    'DEBUG',
    'VERBOSE',
  ];

  let level;

  function init(config) {
    if (!logLevelPreset.includes(config)) {
      throw new Error('Logger:UnmatchedLogLevel');
    }
    level = config;
  }

  function e(...message) {
    if (level === 'SILENT') {
      return;
    }

    return console.error(prefix+"E>", ...message);
  }

  function w(...message) {
    if (level === 'SILENT' || level === 'ERROR') {
      return;
    }

    return console.warn(prefix+"W>", ...message);
  }

  function g(...message) {
    if (level === 'SILENT' || level === 'ERROR' || level === 'WARN') {
      return;
    }

    return console.group(prefix+"G>", ...message);
  }

  function gEnd() {
    if (level === 'SILENT' || level === 'ERROR' || level === 'WARN') {
      return;
    }

    return console.groupEnd();
  }

  function l(...message) {
    if (level === 'SILENT' || level === 'ERROR' || level === 'WARN') {
      return;
    }
    return console.info(prefix+"I>", ...message);
  }

  function i(...message) {
    if (level === 'SILENT' || level === 'ERROR' || level === 'WARN') {
      return;
    }
    return console.info(prefix+"I>", ...message);
  }

  function d(...message) {
    if (level === 'SILENT' || level === 'ERROR' || level === 'WARN' || level === 'INFO') {
      return;
    }
    return console.debug(prefix+"I>", ...message);
  }

  function v(...message) {
    if (level === 'SILENT' || level === 'ERROR' || level === 'WARN' || level === 'INFO' || level === 'DEBUG') {
      return;
    }
    return console.debug(prefix+"D>", ...message);
  }


  return Object.freeze({
    init,
    e,
    w,
    g,
    gEnd,
    l,
    i,
    d,
    v,
  });
}());

export default logger;