0
所以我有一個包含電影評級的數據集,每部電影都有多個評級。 我設法得到所有的數據,但我想添加所有的值。添加數據集中所有對象的所有值
例如:
title: avatar, rating: 2.5
title: avatar, rating: 3
title: avatar, rating 5
rating = 10.5
avrRating = 10.5/ratings.lenght = 3.5
到目前爲止我的代碼:
(它選擇一個隨機的電影,TH它將其movieId與來自另一個數據集的movieId相匹配。然後我將範圍從0-5轉換爲0-100,以便與data2中的寬度相匹配。評級[I] .rating顯示我多個值,但我想avarage值,見上面的例子)
function willekeurigObject() {
var blokje = document.querySelector("#data1");
var blokje = document.querySelector("#data2");
var blokje = document.querySelector("#data3");
var willekeurigAdres = Math.floor(Math.random() * films.length);
var willekeurigefilm = films[willekeurigAdres];
for (var i = 0; i < rating.length; i++){
if (rating[i].movieId == willekeurigefilm.movieId){
var ratings = rating[i].rating;
}
}
var width = (ratings/0.05) + "%";
data1.innerHTML = willekeurigefilm.title;
data2.innerHTML = "<div class='stars'><img src='img/starsinv.png' class='img'></img><div class='yellow' style='width: " + width + "'></div></div>";
data3.innerHTML = "";
}
setInterval(willekeurigObject, 3000);
使變量名唯一或覆蓋它們 –