    &quot;hello _there_&quot;.replace(/_(.*?)_/, function(a, b){
        return &#39;&lt;div&gt;&#39; + b + &#39;&lt;/div&gt;&#39;;
    })
Oh, or you could also:

    &quot;hello _there_&quot;.replace(/_(.*?)_/, &quot;&lt;div&gt;$1&lt;/div&gt;&quot;)


You can use &lt;code&gt;replace&lt;/code&gt; instead of &lt;code&gt;gsub&lt;/code&gt;.

    &quot;hello _there_&quot;.replace(/_(.*?)_/g, &quot;&lt;div&gt;\$1&lt;/div&gt;&quot;)

For the replacement string and the replacement pattern as specified by `$`. 
here a resume:

[![enter image description here][1]][1]

link to doc : [here][2]

    &quot;hello _there_&quot;.replace(/_(.*?)_/g, &quot;&lt;div&gt;$1&lt;/div&gt;&quot;)

&lt;br&gt;&lt;br&gt;
**Note:** 

If you want to have a `$` in the replacement string use `$$`. Same as with vscode snippet system.

  [1]: https://i.stack.imgur.com/ynEua.png
  [2]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace#Specifying_a_string_as_a_parameter

I&#39;m trying to do do the following:

    GetString(
        inputString,
        ref Client.WorkPhone)

    private void GetString(string inValue, ref string outValue)
    {
        if (!string.IsNullOrEmpty(inValue))
        {
            outValue = inValue;
        }
    }

This is giving me a compile error. I think its pretty clear what I&#39;m trying to achieve. Basically I want `GetString` to copy the contents of an input string to the `WorkPhone` property of `Client`.

Is it possible to pass a property by reference?

Passing properties by reference in C#

I forked a GitHub repository. Then I pushed some changes to my fork. Then the original repository merged my changes and some others. Now, I want to merge those changes I&#39;m missing. I tried a simple pull followed by push, but this yield my commits in duplicate. What&#39;s the best way to do it?

Merging between forks in GitHub

I have a string, such as `hello _there_`. I&#39;d like to replace the two underscores with `&lt;div&gt;` and `&lt;/div&gt;` respectively, using **JavaScript**. The output would (therefore) look like `hello &lt;div&gt;there&lt;/div&gt;`. The string might contain multiple pairs of underscores.

What I am looking for is a way to **either** run a function on each match, the way Ruby does it:

    &quot;hello _there_&quot;.gsub(/_.*?_/) { |m| &quot;&lt;div&gt;&quot; + m[1..-2] + &quot;&lt;/div&gt;&quot; }


**Or** be able to reference a matched group, again the way it can be done in ruby:

    &quot;hello _there_&quot;.gsub(/_(.*?)_/, &quot;&lt;div&gt;\\1&lt;/div&gt;&quot;)

Any ideas or suggestions?


Javascript replace with reference to matched group?

I have a string, such as <code>hello _there_</code>. I'd like to replace the two underscores with <code>&#x3C;div></code> and <code>&#x3C;/div></code> respectively, using JavaScript. The output would (therefore) look like <code>hello &#x3C;div>there&#x3C;/div></code>. The string might contain multiple pairs of underscores.
What I am looking for is a way to either run a function on each match, the way Ruby does it:
<pre><code class="hljs language-javascript">"hello _there_".gsub(/_.*?_/) { |m| "&#x3C;div>" + m[1..-2] + "&#x3C;/div>" }
</code></pre>
Or be able to reference a matched group, again the way it can be done in ruby:
<pre><code class="hljs language-javascript">"hello _there_".gsub(/_(.*?)_/, "&#x3C;div>\\1&#x3C;/div>")
</code></pre>
Any ideas or suggestions?

Is it possible to determine whether an element has a click handler, or a change handler, or any kind of event handler bound to it using jQuery?

Furthermore, is it possible to determine how many click handlers (or whatever kind of event handlers) it has for a given type of event, and what functions are in the event handlers?

test if event handler is bound to an element in jQuery

I&#39;ve been using JSLint to make me feel bad about my JavaScript. It is great, by the way. There is one check that I don&#39;t quite understand and I&#39;d like your views, please.

From [jslint.com][1]: 

&gt;In languages with block scope, it is usually recommended that variables be declared at the site of first use. But because JavaScript does not have block scope, it is wiser to declare all of a function&#39;s variables at the top of the function. **It is recommended that a single var statement be used per function.**

What is the last sentance in bold really saying? I think I should be declaring multiple variables like this?

    var foo = 1, bar = 2;

And, is the &quot;wise&quot; part just a programming style to discourage errors down the line or is there more to it than that?

Thanks for your help.


  [1]: http://www.jslint.com/lint.html#scope

One var per function in JavaScript?

I have a string which looks like:

    &lt;html&gt;&lt;head&gt;&lt;title&gt;example&lt;/title&gt;&lt;/head&gt;&lt;body&gt;some example text&lt;/body&gt;&lt;/html&gt;

I get this string returned as a result to an AJAX request.

I would like the browser to render and display that string.  The idea would be to do something like: 

    $(&#39;html&#39;).parent().html(myString);

Well, that doesn&#39;t work.  I&#39;ve attempted to use an IFRAME but I haven&#39;t figured out how to get that to work either.

**Note:** It is impossible for me to change this string.  It is also impossible for me to regenerate this string in a subsequent call to the server (otherwise I could just redirect the browser to that url).

How do I replace the entire HTML node using jQuery

I have used Google Maps a couple of times, but what wondering about [OpenLayers][1].
&lt;br&gt;Before starting any kind of coding, here are a couple of questions that come to my mind,

 - Why would I use OpenLayers instead of Google Maps?
   - Except for its OSS licence, anyway
   - Did you encounter any situation in which you&#39;d recommend absolutly not using OpenLayers?
   - I did a [search about &quot;OpenLayers&quot; on Stack&amp;nbsp;Overflow][2]; there are not many answers. Does it mean this solution is not used much? Could it be a problem for long-term viability of the project?
 - For those of you who have already used OpenLayers: are there any common pitfalls / problems I may encounter?
   - What about using a JavaScript Framework with it? I&#39;ve seen it&#39;s using [Prototype][3], and I know Prototype, so that would be OK. But what about using something else like [MooTools][4]? *(Which is not compatible with Prototype, BTW)*
   - Are there any kind of speed and performance related problems? I need my application to be responsive and can&#39;t wait hours to get a map displayed.
 - Are there maps available for many places, or are there lots of those missing?
   - That is, I&#39;m in France, and need my application to work at least for big cities... Will that be OK?
   - if not, is it easy to find layers and visualisations for OpenLayers and integrate them?
 - Is there any kind of API to display roads? 
   - For instance, to show roads that are one-way only.
   - If yes, how can I do that? Do I have to have some kind of file containing those roads information, and, then, display them on the map by myself?
 - Do you know any good tutorial to OpenLayers?

I have not tried it yet, those are just out of the blue questions... 

  [1]: http://openlayers.org/
  [2]: https://stackoverflow.com/search?q=openlayers
  [3]: http://en.wikipedia.org/wiki/Prototype_JavaScript_Framework
  [4]: http://en.wikipedia.org/wiki/MooTools


OpenLayers vs Google Maps?

I&#39;m writing a web application that&#39;s supposed to be embedded in other people&#39;s websites (kind of a widget). I&#39;m using Google Analytics to track all the people that visit all instances of my script on the embedding websites. The problem is that I don&#39;t know how to use it so that it doesn&#39;t interfere with those websites&#39; own Google Analytics accounts. I&#39;m storing the tracker variable in a namespace, so I thought that should do it, but I haven&#39;t realized that GA stores its settings in cookies (__utma, __utmz etc.), and those cookies are used by both trackers, if there are two of them on the same page... So for example if I use _setVar to store some kind of user-defined variable in Google Analytics, and the embedding site does the same, we overwrite each other&#39;s values...

Of course it would be easiest if Google provided a way to change the name of the cookies to a custom one, but I can&#39;t find any way to do it. I thought about using cookie domain or path to force a separate cookie, but this doesn&#39;t work, because if I set domain or path to something other than the real domain/path, then the cookie is not readable for the page after reload...

Does anyone know a way to have two trackers on one page and make them use separate cookies so that they don&#39;t overwrite each other&#39;s settings?

Or, if that&#39;s completely impossible - is there any other analytics service with similar functionality as GA in which this is possible? (it would have to have advanced features like event and campaign tracking...)

google analytics - multiple trackers on one page (cookie conflict)

I know that I can negate group of chars as in `[^bar]` but I need a regular expression where negation applies to the specific word - so in my example how do I negate an actual `bar`, and not &quot;any chars in bar&quot;?

How to negate specific word in regex?

How do I create a regular expression to match a word at the beginning of a string?

We are looking to match *stop* at the beginning of a string and anything can follow it.

For example, the expression should match:

```lang-none
stop
stop random
stopping
```


Regular expression to match string starting with a specific word

I’m stuck in trying to grep anything just after `name=`, include only spaces and alphanumeric.

e.g.:

    name=some value here

I get

    some value here

I’m totally newb in this, the following grep match everything including the `name=`.

    grep &#39;name=.*&#39; filename

Any help is much appreciated.

How to use grep to get anything just after `name=`?

Is there any way to use raw strings in Java (without escape sequences)?

(I&#39;m writing a fair amount of regex code and raw strings would make my code immensely more readable)

I understand that the language does not provide this directly, but is there any way to &quot;simulate&quot; them in any way whatsoever?

Raw Strings in Java - for regex in particular. Multiline strings

Is there any way to replace a regexp with modified content of capture group?

Example:

    Pattern regex = Pattern.compile(&quot;(\\d{1,2})&quot;);
    Matcher regexMatcher = regex.matcher(text);
    resultString = regexMatcher.replaceAll(&quot;$1&quot;); // *3 ??

And I&#39;d like to replace all occurrence with $1 multiplied by 3.

**edit:**

Looks like, something&#39;s wrong :(

If I use

    Pattern regex = Pattern.compile(&quot;(\\d{1,2})&quot;);
    Matcher regexMatcher = regex.matcher(&quot;12 54 1 65&quot;);
    try {
        String resultString = regexMatcher.replaceAll(regexMatcher.group(1));
    } catch (Exception e) {
        e.printStackTrace();
    }

It throws an IllegalStateException: No match found

But

    Pattern regex = Pattern.compile(&quot;(\\d{1,2})&quot;);
    Matcher regexMatcher = regex.matcher(&quot;12 54 1 65&quot;);
    try {
        String resultString = regexMatcher.replaceAll(&quot;$1&quot;);
    } catch (Exception e) {
        e.printStackTrace();
    }

works fine, but I can&#39;t change the $1 :(

**edit:**

Now, it&#39;s working :)

Content Type	Original Author	Original Content on Stackoverflow
Question	Sinan Taifour	View Question on Stackoverflow
Solution 1 - Javascript	airportyh	View Answer on Stackoverflow
Solution 2 - Javascript	Eifion	View Answer on Stackoverflow
Solution 3 - Javascript	Mohamed Allal	View Answer on Stackoverflow

Javascript replace with reference to matched group?

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Solution 2 - Javascript

Solution 3 - Javascript

Merging between forks in GitHub

Passing properties by reference in C#

Attributions