blocks|key|4198858|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4198859|JSON.parse('{+"some-name":+[+{+++"some-key":+""+}+++]+}');|code-block|syntax|javascript|4198860|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this:

<pre><code>JSON.parse('{ "some-name": [ { "some-key": "" } ] }');
</code></pre>

blocks|key|5667462|text|编辑:根据你更新的例子，你可以做这样的事情(见下图)。这是可行的--但只适用于当前的示例。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5667463|var+convertor+=+function(element)+{
++++var+elementName+=+element.getAttribute('name');

++++var+inpIndex+=+elementName.substring(0,+elementName.indexOf('[')),
++++++++keyIndex+=+elementName.substring(elementName.lastIndexOf('[')+%2B+1,+elementName.lastIndexOf(']'));

++++var+strToObj+=+"var+x+=+{'"+%2B+inpIndex+%2B+"':+[{'"+%2B+keyIndex+%2B+"':+'"+%2B+element.value+%2B+"'}]}";
++++eval(strToObj);
++++return+x;
};
var+myObject+=+convertor(document.getElementById('yourInputID'));|code-block|syntax|javascript|5667464|示例如下：+http://paulrad.com/stackoverflow/string-to-array-object.html+(结果在console.log中可见)|offset|length|style|BOLD|5667465|5667466|旧响应|5667467|使用eval..但是您的字符串必须具有有效的+javascript语法|CODE|5667468|所以：|5667469|var+str+=+"arr[][123]+=+'toto'";
eval(str);
console.log(arr);|5667470|将返回语法错误|5667471|有效语法为：|5667472|var+str+=+"var+arr+=+[];+arr[123]+=+'toto'";
var+x+=+eval(str);
console.log(arr);|5667473|entityMap|0|LINK|mutability|MUTABLE|url|http://paulrad.com/stackoverflow/string-to-array-object.html^0|0|0|0|5|6|1O|0|0|0|0|3|0|2|4|M|D|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1B|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|1C|8|@$I|1D|J|1E|K|L]]|9|@$I|1F|J|1G|1|1H]]|A|$]]|$1|M|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|1J|8|@$I|1K|J|1L|K|L]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1M|8|@$I|1N|J|1O|K|R]|$I|1P|J|1Q|K|L]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1R|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|1S|8|@]|9|@]|A|$E|F]]|$1|W|3|X|5|6|7|1T|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1U|8|@]|9|@]|A|$]]|$1|10|3|11|5|D|7|1V|8|@]|9|@]|A|$E|F]]|$1|12|3|-4|5|6|7|1W|8|@]|9|@]|A|$]]]|13|$14|$5|15|16|17|A|$18|19]]]]

Edit: according to your updated example, you can make something like this (view below). This will work - but only with the current example.

<pre><code>var convertor = function(element) {
 var elementName = element.getAttribute('name');

 var inpIndex = elementName.substring(0, elementName.indexOf('[')),
 keyIndex = elementName.substring(elementName.lastIndexOf('[') + 1, elementName.lastIndexOf(']'));

 var strToObj = "var x = {'" + inpIndex + "': [{'" + keyIndex + "': '" + element.value + "'}]}";
 eval(strToObj);
 return x;
};
var myObject = convertor(document.getElementById('yourInputID'));
</code></pre>

Example here: <a href="http://paulrad.com/stackoverflow/string-to-array-object.html" rel="nofollow">http://paulrad.com/stackoverflow/string-to-array-object.html</a>
(result is visible in the console.log)

<hr>

old response

Use <code>eval</code>.. but your string must have a valid javascript syntax

So:

<pre><code>var str = "arr[][123] = 'toto'";
eval(str);
console.log(arr);
</code></pre>

Will return a syntax error

Valid syntax will be:

<pre><code>var str = "var arr = []; arr[123] = 'toto'";
var x = eval(str);
console.log(arr);
</code></pre>

blocks|key|1882563|text|我不知道你是如何做到这一点的，但假设它们都是那种格式(name[][key])，你需要一个接一个地做--这对我来说是可行的：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1882564|var+fieldObj+=+{};
function+parseFieldName(nameStr)
{
++++var+parts+=+nameStr.match(/[%5E[\]]%2B/g);
++++var+name+=+parts[0];
++++var+key+=+typeof+parts[parts.length-1]+!=+'undefined'+?+parts[parts.length-1]+:+false;
++++if(key===false)+return+false;
++++else
++++{
++++++++if(!fieldObj.hasOwnProperty(name))+fieldObj[name]+=+[];
++++++++var+o+=+{};
++++++++o[key]+=+'val';
++++++++fieldObj[name].push(o);
++++}
}
parseFieldName('some-name[][some-key]');
parseFieldName('some-name[][some-key2]');
parseFieldName('some-name2[][some-key]');
console.log(fieldObj);+//Firebug+shows:+Object+{+some-name=[2],+some-name2=[1]}++--+stringified:+{"some-name":[{"some-key":"val"},{"some-key2":"val"}],"some-name2":[{"some-key":"val"}]}|code-block|syntax|javascript|1882565|当然，可以将o[key]+=+'val';更改为o[key]+=+$("[name="%2BnameStr%2B"]").val()或您想要处理它的任何方式。|1882566|entityMap^0|R|B|0|0|6|F|O|12|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|N|$]]

I don't know exactly how you're doing this, but assuming they are all that format (<code>name[][key]</code>) and you need to do them one by one - this works for me:

<pre><code>var fieldObj = {};
function parseFieldName(nameStr)
{
 var parts = nameStr.match(/[^[\]]+/g);
 var name = parts[0];
 var key = typeof parts[parts.length-1] != 'undefined' ? parts[parts.length-1] : false;
 if(key===false) return false;
 else
 {
 if(!fieldObj.hasOwnProperty(name)) fieldObj[name] = [];
 var o = {};
 o[key] = 'val';
 fieldObj[name].push(o);
 }
}
parseFieldName('some-name[][some-key]');
parseFieldName('some-name[][some-key2]');
parseFieldName('some-name2[][some-key]');
console.log(fieldObj); //Firebug shows: Object { some-name=[2], some-name2=[1]} -- stringified: {"some-name":[{"some-key":"val"},{"some-key2":"val"}],"some-name2":[{"some-key":"val"}]}
</code></pre>

<code>o[key] = 'val';</code> could of course be changed to <code>o[key] = $("[name="+nameStr+"]").val()</code> or however you want to deal with it.

blocks|key|4198934|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4198935|var+input+=+…,
++++something+=+{};

var+names+=+input.name.match(/%5E[%5E[\]]*%7C[%5E[\]]*(?=\])/g);
for+(var+o=something,+i=0;+i<names.length-1;+i%2B%2B)+{
++++if+(names[i])
++++++++o+=+o[names[i]]+%7C%7C+(o[names[i]]+=+names[i%2B1]+?+{}+:+[]);
++++else
++++++++o.push(o+=+names[i%2B1]+?+{}+:+[]);
}
if+(names[i])
++++o[names[i]]+=+input.value;
else
++++o.push(input.value);|code-block|syntax|javascript|4198936|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this:

<pre><code>var input = …,
 something = {};

var names = input.name.match(/^[^[\]]*|[^[\]]*(?=\])/g);
for (var o=something, i=0; i&lt;names.length-1; i++) {
 if (names[i])
 o = o[names[i]] || (o[names[i]] = names[i+1] ? {} : []);
 else
 o.push(o = names[i+1] ? {} : []);
}
if (names[i])
 o[names[i]] = input.value;
else
 o.push(input.value);
</code></pre>

There are a couple of similar questions but none covers the case when a string looks like <code>some-name[][some-key]</code>. I have tried <code>JSON.parse('some-name[][some-key]');</code> but it doesn't parse it.

Is there a way to convert such string to a JavaScript object that will look like <code>{ 'some-name': { 0: { 'some-key': '' } } }</code>?

This is a name of a form field. It's normally parsed by PHP but I'd like to parse it with JavaScript the same way. I basically have <code>&lt;input name="some-name[][some-key]"&gt;</code> and I'd like to convert that to <code>var something = { 'some-name': { 0: { 'some-key': VALUE-OF-THIS-FIELD } } }</code>.

Build object in JavaScript from PHP form input name

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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有几个类似的问题，但没有一个涵盖字符串看起来像some-name[][some-key]的情况。我尝试过JSON.parse('some-name[][some-key]');，但它不能解析它。有没有办法将这样的字符串转换成类似于{ 'some-name': { 0: { 'some-key': '' } } }的Ja...

问在JavaScript中从PHP表单输入名称构建对象
EN

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