据我了解，Sizzle 返回一个对象数组（DOMElements），我试图在 for 循环中遍历该对象数组，但出现错误。当我尝试通过
obj[index-number]["property"]
它工作正常，但是当我在将它传递给另一个函数后尝试访问它时
obj[index-number][arguments[index-number]]
我得到了未定义的回报。我尝试了许多不同的方法，包括 eval 来解析点符号无济于事。我难住了。任何指示或想法都会很棒。此外，我已经验证了该函数的所有输入都是正确的（通过提醒它们），此外，硬编码这些值以获得我想要的函数也可以。这是我的代码：（对不起，它很长）.....
var ecmafw = function() {
// Creates the new instance of the object.
// Sets up the objects global properties:
this.error = false;
// Checks to see if arguments were supplied, if none are then it returns false.
if (arguments.lenght == 0) {
this.error = "No arguments were supplied.";
return false;
}
// Gives a reference to the result set.
this.results = Sizzle(arguments[0]);
this.attr = function() {
/* Purpose: To add/remove/update an attribute from the results set.
*
* Can be used in two ways:
* 1: .attr("attribute1='value' attribute2='value' attribute3='value'") // adds/removes them all. [negate value to be removed with "-" (used for class)]
* 2: .attr("attribute", "value") // adds the one. [negate value to be removed with "-" (used for class)]
* 3: .attr("attribute") // removes the one.
* 4: .attr("attribute1 attribute2 attribute3") // removes them all.
*/
var len = this.results.length;
switch (arguments.length) {
case 1:
for (var a=0; a < len; a++) {
var re = new RegExp("=", "g");
if (re.test(arguments[0])) {
// Provided a list of attributes to update/create.
valuePairs = arguments[0].split("' ");
for (var i=0; i < valuePairs.length; i++) {
var attributeValue = valuePairs[i].split("=");
var newRE = new RegExp(/^-/);
var value = attributeValue[1].replace(/'/g, "");
if (newRE.test(value)) {
this.removeAttr(attributeValue[0], a, value);
} else {
this.setAttr(attributeValue[0], value, a);
}
}
} else {
var attributeSplit = arguments[0].split(" ");
if (attributeSplit.length == 1) {
// Provided a single attributes to remove.
this.removeAttr(arguments[0], a);
} else {
// Provided multiple attributes to remove.
for (var i=0; i < attributeSplit.length; i++) {
this.removeAttr(attributeSplit[i], a);
}
}
}
}
break;
case 2:
// Provided a single name/value pair to update.
for (var a=0; a < len; a++) {
this.setAttr(arguments[0], arguments[1], a)
}
break;
default:
// Either 0 or more than 2 arguments were supplied.
this.error = "There were no arguments supplied with the attr() function, or there were too many supplied.";
return false
break;
}
};
this.setAttr = function() {
// Counters for IE className
if (document.all && !window.opera) {
arguments[0] = arguments[0].replace(/class/gi, "className");
}
if (arguments[0] == "class" || arguments[0] == "className") {
if (this.results[arguments[2]][arguments[0]] != undefined) {
arguments[1] += " " + this.results[arguments[2]][arguments[0]]; // Failing
}
}
if (this.results[arguments[2]].setAttribute) {
this.results[arguments[2]].setAttribute(arguments[0], arguments[1]);
} else {
this.results[arguments[2]][arguments[0]] = arguments[1];
}
};
this.removeAttr = function() {
arguments[0] = arguments[0].replace(/class/gi, "className");
var item = this.results[arguments[1]];
if (arguments[0] == "className") {
arguments[2] = arguments[2].replace("-", "");
var replaceRE = new RegExp(arguments[2], "gi");
// For some reason it would find it like this, This is fine but it is not working
// in Opera. Opera is failing to convert item[eachItem] to an object. (so it says in its error log)
for (var eachItem in item) {
if (arguments[0] == eachItem) {
item[eachItem] = item[eachItem].replace(replaceRE, " ");
item[eachItem] = item[eachItem].replace(/ /gi, " ");
item[eachItem] = item[eachItem].replace(/^ /gi, "");
item[eachItem] = item[eachItem].replace(/ $/gi, "");
}
}
} else {
if (this.results[arguments[1]].removeAttribute) {
this.results[arguments[1]].removeAttribute(arguments[0]);
} else {
this.results[arguments[1]][arguments[0]] = "";
}
}
};
// Returns a reference to itself.
return this;
}