array.push 不是函数？

Question

  let guildMembers = [];
  response.guild.members.forEach(async m => {
    let userResponse;
    try {
      userResponse = await axios.get(`https://api.hypixel.net/player?key=KEY&uuid=${m.uuid}`);
    } catch (err) {
      console.error(err);
    }
    userResponse = userResponse.data;
    if(userResponse.success != true) return res.send('Error with API.');
    userResponse = userResponse.player;
    var guildRank = m.rank;
    guildRank = guildRank.toLowerCase();
    guildRank = guildRank.charAt(0).toUpperCase() + guildRank.slice(1);
    guildMembers.push(`${userResponse.displayname} | ${guildRank}`);
  });

Why does this return UnhandledPromiseRejectionWarning: TypeError: guildMembers.push is not a function ?

I tried doing console.log(`${userResponse.displayname} | ${guildRank}`); right before guildMembers.push(`${userResponse.displayname} | ${guildRank}`); and it logged what is supposed to be added correctly.

Answer 1

Try to use the for..of loop or the traditionally for loop. ForEach seems to be read only .