如何在JavaScript中将用户输入转换为大写？

Question

Hey this should be an easy question I was wondering how and if i could possibly make this if statement check for "hello" regardless if it's written hello, HELLO, heLLO ect. this is my code here don't worry all the other variables are being taken care of by another library (discord's to be exact) Thanks

bot.on('message', function(message){
  if(message.content == "hello")
  {
    message.reply("hello");
  }

Answer 1

in javascript you can use .toUpperCase() at the end of any string variable or litteral

or same goes for .toLowerCase() so first you need to convert to upper case or lower case then compare

if (message.content.toUpperCase()==="HELLO")

or

if (message.content.toLowerCase()==="hello")

this is the full code

bot.on('message', function(message){
  if(message.content.toLowerCase() === "hello")
  {
    message.reply("hello");
  }

Answer 2

You can use .toUpperCase()

bot.on('message', function(message){
  if(message.content.toUpperCase() == "HELLO")
  {
    message.reply("hello");
  }