blocks|key|538329|text|不是最美的，但它对我很有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|538330|var
++path+=+"masterkey[key1][key2]",
++scope+=+{};

function+helper(scope,+path,+value)+{
++var+path+=+path.split('['),+i+=+0,+lim+=+path.length;
++for+(;+i+<+lim;+i+%2B=+1)+{
++++path[i]+=+path[i].replace(/\]/g,+'');

++++if+(typeof+scope[path[i]]+===+'undefined')+{
++++++scope[path[i]]+=+{};
++++}

++++if+(i+===+lim+-+1)+{
++++++scope[path[i]]+=+value;
++++}
++++else+{
++++++scope+=+scope[path[i]];
++++}
++}
}

helper(scope,+path,+'somevalue');

console.log(scope);|code-block|syntax|javascript|538331|演示：http://jsfiddle.net/hR8yM/|offset|length|538332|entityMap|0|LINK|mutability|MUTABLE|url|http://jsfiddle.net/hR8yM/^0|0|0|3|Q|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

Not the most beautiful, but it worked for me:

<pre><code>var
 path = "masterkey[key1][key2]",
 scope = {};

function helper(scope, path, value) {
 var path = path.split('['), i = 0, lim = path.length;
 for (; i &lt; lim; i += 1) {
 path[i] = path[i].replace(/\]/g, '');

 if (typeof scope[path[i]] === 'undefined') {
 scope[path[i]] = {};
 }

 if (i === lim - 1) {
 scope[path[i]] = value;
 }
 else {
 scope = scope[path[i]];
 }
 }
}

helper(scope, path, 'somevalue');

console.log(scope);
</code></pre>

demo: <a href="http://jsfiddle.net/hR8yM/" rel="nofollow">http://jsfiddle.net/hR8yM/</a>

blocks|key|537450|text|现在试试这个|type|unstyled|depth|inlineStyleRanges|entityRanges|data|537451|string+=+"masterkey[key1][key2]";
var+fullName+=+string;
fullName+=+fullName.replace(/\[/g,+'[\'');
fullName+=+fullName.replace(/\]/g,+'\']');

document.write("var+"%2BfullName%2B";");|code-block|syntax|javascript|537452|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|$]]

Now try this

<pre><code>string = "masterkey[key1][key2]";
var fullName = string;
fullName = fullName.replace(/\[/g, '[\'');
fullName = fullName.replace(/\]/g, '\']');

document.write("var "+fullName+";");
</code></pre>

blocks|key|611932|text|1)使用eval时，您提供的参数必须是有效的、完整的javascript。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|611933|这条线|611934|+var+masterkey["key1"]["key2"];|code-block|syntax|javascript|611935|不是有效的javascript语句。|611936|为变量赋值时，必须使用=。简单地将一些值连接到变量名的末尾是行不通的。|offset|length|style|CODE|611937|2)+var+masterkey+=+["key1"]["key2"]没有任何意义。|611938|这看起来像是试图将nothing的"key1“属性的"key2”属性分配给masterkey。|611939|如果您希望结果类似于您给出的示例对象，那么这就是您需要创建的。也就是说，正确解析字符串以创建对象比使用正则表达式将其转换为脚本进行计算要好得多。|611940|entityMap^0|0|0|0|0|B|1|0|3|W|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|11|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|12|8|@$M|13|N|14|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|15|8|@$M|16|N|17|O|P]]|9|@]|A|$]]|$1|S|3|T|5|6|7|18|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|19|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|X|$]]

1) When using eval, the argument you provide must be valid, complete javascript.

The line 

<pre><code> var masterkey["key1"]["key2"];
</code></pre>

is not a valid javascript statement.

When assigning a value to a variable, you must use <code>=</code>. Simply concatenating some values on to the end of the variable name will not work.

2) <code>var masterkey = ["key1"]["key2"]</code> doesn't make sense.

This looks like an attempt to assign the "key2" property of the "key1" property of nothing to masterkey.

If you want the result to be like the example object you give, then that is what you need to create. That said, parsing the string properly to create an object is better than using regular expressions to translate it into some script to evaluate.

blocks|key|1554270|text|function+parse(s,+obj)+{
++++s.match(/\w%2B/g).reduce(function(o,+p)+{+return+o[p]+=+{}+},+obj);
++++return+obj;
}

console.dir(parse("masterkey[key1][key2]",+{}))|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1554271|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>function parse(s, obj) {
 s.match(/\w+/g).reduce(function(o, p) { return o[p] = {} }, obj);
 return obj;
}

console.dir(parse("masterkey[key1][key2]", {}))
</code></pre>

I have a string

<pre><code>string = "masterkey[key1][key2]";
</code></pre>

I want to create an associative array out of that, so that it evaluates to:

<pre><code>{
 masterkey: {
 key1: {
 key2: value
 }
 }
}
</code></pre>

I have tried this:

<pre><code>var fullName = string;
fullName = fullName.replace(/\[/g, '["');
fullName = fullName.replace(/\]/g, '"]');
eval("var "+fullName+";");
</code></pre>

But I get the error: <code>missing ; before statement</code> with an arrow pointing to the first bracket in (<code>[</code>) <code>"var masterkey["key1"]["key2"];"</code>

I know that <code>eval()</code> is not good to use, so if you have any suggestions, preferably without using it, I'd really appreciate it!

Converting a string to a javascript associative array

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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我有一根线string = "masterkey[key1][key2]";我想在此基础上创建一个关联数组，以便它的计算结果为：{  masterkey: {    key1: {      key2: value    }  }}我已经尝试过了：var fullName = string;fullName = ful...

问将字符串转换为javascript关联数组
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