Silly Generator Exercise

here is my code after following the steps but it isn’t working

var customName = document.getElementById(‘customname’);
var randomize = document.querySelector(’.randomize’);
var story = document.querySelector(’.story’);

function randomValueFromArray(array){
var random = Math.floor(Math.random()*array.length);
return array[random];
}

var storyText = ‘It was 94 fahrenheit outside, so :insertx: went for a walk. When they got to :inserty:, they stared in horror for a few moments, then :insertz:. Bob saw the whole thing, but was not surprised — :insertx: weighs 300 pounds, and it was a hot day.’;
var insertX = [‘Willy the Goblin’,‘Big Daddy’,‘Father Christmas’];
var insertY = [‘the soup kitchen’,‘Disneyland’,‘the White House’];
var insertZ = [‘spontaneously combusted’,‘melted into a puddle on the sidewalk’,‘turned into a slug and crawled away’];

randomize.addEventListener(‘click’, result);

function result() {
var newStory = storyText;

var xItem = randomValueFromArray(insertX);
var yItem = randomValueFromArray(insertY);
var zItem = randomValueFromArray(insertZ);

newStory = newStory.replace(’:insertx:’,xItem);
newStory = newStory.replace(’:insertx:’,xItem);
newStory = newStory.replace(’:inserty:’,yItem);
newStory = newStory.replace(’:insertz:’,zItem);

if(customName.value !== ‘’) {
var name = customName.value;
newStory = newStory.replace(‘Bob’,name);
}

if(document.getElementById(“uk”).checked) {
var weight = Math.round(300*0.0714286) + ’ stone’;
var temperature = Math.round((94-32) * 5 / 9) + ’ centigrade’;
newStory = newStory.replace(‘94 fahrenheit’,temperature);
newStory = newStory.replace(‘300 pounds’,weight);
}

story.textContent = newStory;
story.style.visibility = ‘visible’;
}

Any help will be welcomed