我首先要征求意见。我只在 JavaScript 上制作购物车,我想知道如何更正确地组织我的应用程序。例如我有两个页面:产品页面和购物篮页面。为了存储数据,我使用数组:
var productId, productName, productSize, productAmount;
var productsData = [];
我想把这样的对象放在那里:
productsData.push({productId:productId,productName:productName,productSize:productSize,productAmount:productAmount});
我不知道如何获取一组 li 元素并将它们放入我的对象中(存储了每种尺寸的鞋子)。 我创建了下一个,但不幸的是它不起作用:
$('.size').on("click", "a li", function () {
productSize = parseInt($(this).text(), 10);
productsData.push({productSize:productSize});
console.log(productsData[productId]['productSize']);
});
当我获得整个对象时,我会将其放入本地存储并显示在购物车页面上。
在我的 html 代码片段下面:
<main class="product-section">
<div class="product-preview" id="item1">
<div class="current-photo-product">
<img src="img/product-photo1.png" alt="Grey">
<img src="img/product-photo2.png" alt="White">
<img src="img/product-photo3.png" alt="Light Blue">
<img src="img/product-photo4.png" alt="Dark Blue">
</div>
<div class="choice-photo">
<ul>
<li><img src="img/product-photo1.png" alt="Grey"></li>
<li><img src="img/product-photo2.png" alt="White"></li>
<li><img src="img/product-photo3.png" alt="Light Blue"></li>
<li><img src="img/product-photo4.png" alt="Dark Blue"></li>
</ul>
</div>
</div>
<div class="product-details">
<div class="wrapper-details">
<h2>New Balance</h2>
<p class="article-number">Article number: 14210160762</p>
<h4 id="amount">€ 99.95</h4>
<p class="description">Lorem ipsum dolor sit amet enim. Etiam ullamcorper. Suspendisse a pellentesque dui, non felis. Maecenas malesuada elit lectus felis, malesuada ultricies.
</p>
<h3>Size</h3>
<ul class="size" id="listOfSizes">
<a href="#"><li>38</li></a>
<a href="#"><li>39</li></a>
<a href="#"><li>40</li></a>
<a href="#"><li>41</li></a>
<a href="#"><li>42</li></a>
</ul>
<button id="add-to-cart">Add to cart</button>
</div>
</div>
</main>
最佳答案
我不太清楚你的问题,但让我告诉你如何使用你建议的对象数组 {productId:productId,productSize:productSize,...}
- 也许吧可以帮助你:
当你在这样的数组中创建一个对象,并且你想添加一个属性,比如 productSize
,productName
,...你必须确保你'重新将它添加到对象中,而不是像使用 productsData.push({productSize:productSize});
那样添加到数组中。
因此,首先通过属性 productId
找到正确的对象,然后添加您的属性和值对。
productsData = [];
//random id for this example - you can generate those however you like of course
productId = 112;
//you add the new product with given id...but you don't know how big the array was before
productsData.push({productId:productId})
//now you set a size
productSize = 33;
//you search for the product with given ID in the array to be able to add the size value to it
//the method "arrayObjectIndexOf" I just copied from an answer here:
//http://stackoverflow.com/questions/8668174/indexof-method-in-an-object-array
var searchIndex = arrayObjectIndexOf(productsData, productId, "productId");
//now in the first brackets you get inside the object and in the second you create a new property "productSize"and set its value
productsData[searchIndex]["productSize"] = productSize;
alert(productsData[searchIndex].productSize);
function arrayObjectIndexOf(myArray, searchTerm, property) {
for(var i = 0, len = myArray.length; i < len; i++) {
if (myArray[i][property] === searchTerm) return i;
}
return -1;
}
关于javascript - 如何获取一组 li 元素并将其放入 JavaScript 中的对象中,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/37379555/