来自http://tunps.com/javascript-array-like-object
类数组对象中的“类”不是class的意思，而是like，类似的意思。var a = {}; // Start with a regular empty object// Add properties to make it "array-like"var i = 0;while(i < 10) { a[i] = i * i; i++;}a.length = i;// Now iterate through it as if it were a real arrayvar total = 0;for(var j = 0; j < a.length; j++) total += a[j]; |
