如何使用Math.Floor获得特定的索引？

Question

我制作了一个名为hru的const，并在该const中插入了3个字符串，然后添加了一个当前具有Math的if语句。随机发言，所以如果我单击“通话”按钮并说我做得很好，则计算机将返回我在const中输入的3个字符串之一，但我不希望这样做。我希望计算机返回我在const hru中输入的第一个字符串，我该怎么做？请先阅读代码。

LDLIBS

const btn = document.querySelector('.talk');
const content = document.querySelector('.content');
const greetings = [
				'If you are good im good too.', 
				'Im doin alright', 
				'doing well.'
];
const weather = [
				'Ask the weatherman!', 
				'I recommend checking your phone or the news ' 
				
];
const name = [
	'My name is techwaala', 
	'its techwaala, because I love to code!'
];
const hello = [
	'Why hello! How are you doing today?', 
	'Hey there How are you?'
];
const hru = [
	'thats great!', 
	'Im so sorry to hear that', 
	'Feel better soon!'
];
const SpeechRecognition = 
	window.SpeechRecognition || window.webkitSpeechRecognition;
const recognition = new SpeechRecognition();

recognition.onstart = function() {
	console.log('voice is activated speak into the mic');
};
recognition.onresult = function(event) {
	const current = event.resultIndex;
	
	const transcript = event.results[current][0].transcript;
	content.textContent = transcript;
	readOutLoud(transcript);
}

btn.addEventListener('click', () => {
	recognition.start();
});

function readOutLoud(message) {
	
	const speech = new SpeechSynthesisUtterance();
	speech.text = 'I dont know what you said';
	if(message.includes('how are you')) {
		 const finalText = 
		 greetings[Math.floor(Math.random() * greetings.length)];
		 speech.text = finalText;
		
	} 
	if(['hey', 'hi', 'hello', 'hi there', 'hey there', 'hi techwala', 'hey techwala','hello techwala']
	.some(word => message.includes(word))) {
    const finalText = hello[Math.floor(Math.random() * hello.length)];
    speech.text = finalText;
	
}
	if(['whats your name', 'your name']
	.some(word => message.includes(word))) {
    const finalText = name[Math.floor(Math.random() * name.length)];
    speech.text = finalText;
}
if(['how\'s the weather', 'what\'s the weather like', 'is it sunny', 'is it raining', 'is it cloudy', 'is it snowing']
	.some(word => message.includes(word))) {
    const finalText = weather[Math.floor(Math.random() * weather.length)];
    speech.text = finalText;
}
	if(['I/m doing good', 'doing good']
	.some(word => message.includes(word))) {
    const finalText = hru[Math.floor(Math.random() * hru.length)];
    speech.text = finalText;
}
	speech.volume = 1;
	speech.rate = 1;
	speech.pitch = 1;
	window.speechSynthesis.speak(speech);
		
	}