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我有一个简单的问题让我很困惑。我尝试寻找解决的其他类似问题，但找不到这个确切的问题。我正在尝试将一个字符串推送到一个空字符串中，但我收到了一个错误，提示推送不是一个函数？

/Users/3x7r3m157/Development/Javascript/leaderboard.js:37
  competitor.push(data[i])
             ^

TypeError: competitor.push is not a function Super confused.

有任何想法吗？这是我的代码（我知道还有其他错误，但目前正在解决这个奇怪的推送错误）：


const args = require('yargs').argv;
const fs = require('fs');
const util = require('util');
const leaderboard = require('./db.json')

const addCompetitor = (name) => {
  leaderboard[name] = { points: [], times: [] }
  console.log(leaderboard)
  return leaderboard
}

console.log(leaderboard)

const addCompetitorTimes = (data) => {
  let parser = 0;
  var competitor = '';
  let times = '';
  let seconds = '';
  let minutes = '';
  let timeInSeconds = 0;

  for (let i = 0 ; i < data.length ; i ++) {
    if (parser == 0) {
      //Stack Overflow peeps, weird error right here:
      competitor.push(data[i])
    }
    if (parser == 0 && i == '_') {
      parser ++
    }
    if (parser == 1) {
      times.push(data[i])
    }
  }

  parser = 0

  for (let i = 0 ; i < times.length ; i ++) {
    if (parser == 0) {
      minutes.push(times[i])
    }
    if (parser == 0 && i == ':') {
      parser ++
    }
    if (parser == 1) {
      seconds.push(times[i])
    }
  }
  seconds = parseInt(seconds);
  minutes = parseInt(minutes);

  timesInSeconds = seconds + (minutes * 60)

  // leaderboard[name].times.push(timeInSeconds)

  return timesInSeconds
}

addCompetitorTimes(args.competitorTimes)

fs.readFile('./db.json', (err, leaderboard) => {
    if (err) throw err;
    var db = JSON.parse(leaderboard);
    // console.log(db)
});
4

1 回答 1

1 
var competitor = '';

competitor是一个字符串，而不是一个数组

像这样初始化它以使其成为一个数组：

const competitor = [];
于 2019-10-12T15:55:18.447 回答