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我在Javascript中很新,剛開始學習對象和數組。我非常困惑,試圖構建一個產品的二維數組。第一個數組由類別組成。每個類別都是一系列產品。每個產品都是產品對象的一個實例。像多維數組和具有屬性的對象
for car: Honda, Toyota, Ford, etc.
a Honda can consist of :
Civic, 1997, VIN#123435678, 30000 miles, good condition, $12000, etc.
Accord, 1990, VIN#203948574, 100000 miles, good and running, $1000, etc.
So an instance of a car can be a Honda. And Honda can be an array of Accord, Civic, etc
我製作的是:
var salsa1 = new Product("Salsa", "Victor Manuelle", "2013", "17.00");
var salsa2 = new Product("Salsa", "Grupo Niche", "2012", "15.00");
var salsa = new Array();
salsa.push(salsa1);
salsa.push(salsa2);
var bachata1 = new Product("Bachata", "Romeo Santos", "2011", "15.00");
var bachata2 = new Product("Bachata", "Joan Soriano", "2013", "18.50");
var bachata = new Array();
bachata.push(bachata1);
bachata.push(bachata2);
var products = new Array();
var count = products.push(salsa);
count = products.push(bachata);
document.write("<table border='0'><tr><th>Type of Music</th><th>Artist Name</th><th>Year of release</th><th>Price for CD</th></tr>");
for (var i=0; i<count; i++)
{
document.write("<tr>");
document.write("<td>" + products[i][0].type + "</td>");
for (var j=0; j<products[i].length; j++)
{
products[i][j].showProduct();
document.write("</tr><td></td>");
}
};
但是這樣是不對的。請給我一些關於如何找到正確的解決方案的建議!
如果您構建單個HTML字符串並一次寫入(即單個'document.write'調用),則它更高效(並且更容易使用HTML引擎),否則它必須處理無效的HTML一路上。一個表**必須有一個結束標記(它們可以省略TR和TD)。一個開放的TD標籤不能立即跟隨一個關閉的TR標籤,它必須跟隨一個開放的TR。 – RobG