我收到此 JavaScript 错误，做了一些研究，人们在谈论有关实例化对象的内容。
function generateRow() {
var i = pageCounter.getIP_count();
//common sense counting
i++;
var objNEWVIP = document.getElementById("IP_row_new");
var objMODIFYVIP = document.getElementById("IP_row_modify");
//common DOM elements
var memberNum = document.createTextNode('Member IP'+ i + '\u00a0');
var brNode = document.createElement('br');
var nbspSpace = document.createTextNode('\u00a0');
var resolvesTextNode = document.createTextNode('Resolves: \u00a0');
//new_IP_Octet1_Element
var new_IP_Octet1_Element = document.createElement('input');
new_IP_Octet1_Element.setAttribute('type','text');
new_IP_Octet1_Element.setAttribute('maxlength','3');
new_IP_Octet1_Element.setAttribute('size','3');
new_IP_Octet1_Element.setAttribute('name','IP'+i+'_octet1');
new_IP_Octet1_Element.setAttribute('id','IP'+i+'_octet1');
new_IP_Octet1_Element.setAttribute('value','167');
new_IP_Octet1_Element.setAttribute('size','3');
new_IP_Octet1_Element.setAttribute('hostname','IP'+i+'_hostname');
new_IP_Octet1_Element.onchange = function () { resolveMe(this.id); };
//new_IP_Octet1_Element.setAttribute('onchange', 'resolveMe(this.id);');
//new_IP_Octet2_Element
var new_IP_Octet2_Element = document.createElement('input');
new_IP_Octet2_Element.setAttribute('type','text');
new_IP_Octet2_Element.setAttribute('maxlength','3');
new_IP_Octet2_Element.setAttribute('size','3');
new_IP_Octet2_Element.setAttribute('name','IP'+i+'_octet2');
new_IP_Octet2_Element.setAttribute('id','IP'+i+'_octet2');
new_IP_Octet2_Element.setAttribute('value','69');
new_IP_Octet2_Element.setAttribute('size','3');
new_IP_Octet2_Element = function () { resolveMe(this.id); };
//new_IP_Octet2_Element.setAttribute('onchange', 'resolveMe(this.id);');
//new_IP_Octet3_Element
var new_IP_Octet3_Element = document.createElement('input');
new_IP_Octet3_Element.setAttribute('type','text');
new_IP_Octet3_Element.setAttribute('maxlength','3');
new_IP_Octet3_Element.setAttribute('size','3');
new_IP_Octet3_Element.setAttribute('name','IP'+i+'_octet3');
new_IP_Octet3_Element.setAttribute('id','IP'+i+'_octet3');
new_IP_Octet3_Element.setAttribute('value','0');
new_IP_Octet3_Element.setAttribute('size','3');
new_IP_Octet3_Element = function () { resolveMe(this.id); };
//new_IP_Octet3_Element.setAttribute('onchange', 'resolveMe(this.id);');
//new_IP_Octet4_Element
var new_IP_Octet4_Element = document.createElement('input');
new_IP_Octet4_Element.setAttribute('type','text');
new_IP_Octet4_Element.setAttribute('maxlength','3');
new_IP_Octet4_Element.setAttribute('size','3');
new_IP_Octet4_Element.setAttribute('name','IP'+i+'_octet4');
new_IP_Octet4_Element.setAttribute('id','IP'+i+'_octet4');
new_IP_Octet4_Element.setAttribute('value','0');
new_IP_Octet4_Element.setAttribute('size','3');
new_IP_Octet4_Element = function () { resolveMe(this.id); };
//new_IP_Octet4_Element.setAttribute('onchange', 'resolveMe(this.id);');
//make SPAN for DNS reverse resolution
var reverseDNS_Element = document.createElement('span');
reverseDNS_Element.setAttribute('id','IP'+i+'_hostname');
reverseDNS_Element.setAttribute('name','IP'+i+'_hostname');
//output
if (document.getElementById('requesttype').value == "new") {
objNEWVIP.appendChild(memberNum);
objNEWVIP.appendChild(new_IP_Octet1_Element);
objNEWVIP.appendChild(nbspSpace);
objNEWVIP.appendChild(new_IP_Octet2_Element);
objNEWVIP.appendChild(nbspSpace);
objNEWVIP.appendChild(new_IP_Octet3_Element);
objNEWVIP.appendChild(nbspSpace);
objNEWVIP.appendChild(new_IP_Octet4_Element);
objNEWVIP.appendChild(nbspSpace);
objNEWVIP.appendChild(resolvesTextNode);
objNEWVIP.appendChild(reverseDNS_Element);
objNEWVIP.appendChild(brNode);
}
if (document.getElementById('requesttype').value == "modify") {
objMODIFYVIP.appendChild(memberNum);
objMODIFYVIP.appendChild(new_IP_Octet1_Element);
objMODIFYVIP.appendChild(nbspSpace);
objMODIFYVIP.appendChild(new_IP_Octet2_Element);
objMODIFYVIP.appendChild(nbspSpace);
objMODIFYVIP.appendChild(new_IP_Octet3_Element);
objMODIFYVIP.appendChild(nbspSpace);
objMODIFYVIP.appendChild(new_IP_Octet4_Element);
objMODIFYVIP.appendChild(nbspSpace);
objMODIFYVIP.appendChild(resolvesTextNode);
objMODIFYVIP.appendChild(reverseDNS_Element);
objMODIFYVIP.appendChild(brNode);
}
pageCounter.addMethod("ip_count"); //increment after adding row
}
generateRow() 函数在用户单击按钮时被调用。
我要实例化什么对象...以及如何做到这一点？
我认为问题在于
var objNEWVIP = document.getElementById("IP_row_new");
var objMODIFYVIP = document.getElementById("IP_row_modify");
但我不确定如何在此位置创建新对象...
这是计数器函数
function counterObj(){
//object to keep track of all counts across all forms
this.ipCountTotal = 0;
this.dnsElementTotal = 0;
this.approverTotal = 0;
//input methods mapping
this.clear = clearing;
this.addMethod = add;
//retreval methods mapping
this.getIP_count = function() { return(this.ipCountTotal);};
this.getDNS_count = function() { return(this.dnsElementTotal);};
this.getApprover_count = function() { return(this.approverTotal);};
//addMethod
function add(strType){
switch(strType) {
case "dns_count":
this.dnsElementTotal++;
break;
case "ip_count":
this.ipCountTotal++;
break;
case "approver_count":
this.approverTotal++;
break;
} //end swtich strType
}
//clear all
function clearing(){
this.ipCountTotal = 0;
this.dnsElementTotal = 0;
this.approverTotal = 0;
}
}
以下是声明:
var pageCounter = new counterObj();
pageCounter.clear()
这是 html DIV
<div id="ip_row_new" title="please provide the ip address of each endpoint member.">
</div>
还有...
<div id="IP_row_modify">
<!-- dynamically adds new rows -->
</div>
这是用户将选择的 HTML 中的 select 语句...
<select id="requesttype" name="requestType" onChange="checkF5Request(this.value);" tabindex="2">
<option value="...">...</option>
<option value="new">New Request</option>
<option value="modify">Modify Request</option>
<option value="delete">Removal Request</option>
<option value="iRule_redirect">iRule Redirect</option>
</select>
这是错误:
Error: uncaught exception: [Exception... "Could not convert JavaScript argument arg 0 [nsIDOMHTMLDivElement.appendChild]" nsresult: "0x80570009 (NS_ERROR_XPC_BAD_CONVERT_JS)" location: "JS frame :: https://request.psp :: generateRow :: line 358" data: no]
最佳答案
所以你的new_IP_Octet2_Element是一个函数:
new_IP_Octet2_Element = function () { resolveMe(this.id); };
..无法传递给 appendChild() ，这需要一个 DOM 节点。
我不确定这个函数有什么意义，但是如果你删除它， objNEWVIP.appendChild(new_IP_Octet2_Element); 上的错误应该消失。
关于JavaScript 错误 : NS_ERROR_XPC_BAD_CONVERT_JS，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/8330753/