You have to use [`RegExp`][1]:

    str.match(new RegExp(pattern1+&#39;|&#39;+pattern2, &#39;gi&#39;));


----------

&gt; When I&#39;m concatenating strings, all slashes are gone.

If you have a backslash in your pattern to escape a special regex character, (like `\(`), you have to use **two** backslashes in the string (because `\` is the escape character in a string): `new RegExp(&#39;\\(&#39;)` would be the same as `/\(/`.

So your patterns have to become:

    var pattern1 = &#39;:\\(|:=\\(|:-\\(&#39;;
    var pattern2 = &#39;:\\(|:=\\(|:-\\(|:\\(|:=\\(|:-\\(&#39;;


  [1]: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/regexp

Use the below:

    var regEx = new RegExp(pattern1+&#39;|&#39;+pattern2, &#39;gi&#39;);
    
    str.match(regEx);

You have to forgo the regex literal and use the object constructor, where you can pass the regex as a string.

    var regex = new RegExp(pattern1+&#39;|&#39;+pattern2, &#39;gi&#39;);
    str.match(regex);



The RegExp constructor creates a regular expression object for matching text with a pattern.
        
        var pattern1 = &#39;:\\(|:=\\(|:-\\(&#39;;
        var pattern2 = &#39;:\\(|:=\\(|:-\\(|:\\(|:=\\(|:-\\(&#39;;
        var regex = new RegExp(pattern1 + &#39;|&#39; + pattern2, &#39;gi&#39;);
        str.match(regex);

Above code works perfectly for me...

I have added three methods with parameters:

    public static  void doSomething(Object obj) {
		System.out.println(&quot;Object called&quot;);
	}
	
	public static  void doSomething(char[] obj) {
		System.out.println(&quot;Array called&quot;);
	}

	public static  void doSomething(Integer obj) {
		System.out.println(&quot;Integer called&quot;);
	}

When I am calling `doSomething(null)` , then compiler throws error as **ambiguous methods**. So is the issue because `Integer` and `char[]` methods or `Integer` and `Object` methods?

Method Overloading for null argument

Is there public API for using the [Google Authenticator][1] (two factor authentication) on self-running (e.g. LAMP stack) web apps?


  [1]: http://www.google.com/support/a/bin/answer.py?hl=en&amp;answer=1037451

Google Authenticator available as a public service?

How to construct two regex patterns into one?

For example I have one long pattern and one smaller, I need to put smaller one in front of long one.

    var pattern1 = &#39;:\(|:=\(|:-\(&#39;;
    var pattern2 = &#39;:\(|:=\(|:-\(|:\(|:=\(|:-\(&#39;
    str.match(&#39;/&#39;+pattern1+&#39;|&#39;+pattern2+&#39;/gi&#39;);

This doesn&#39;t work. When I&#39;m concatenating strings, all slashes are gone.


Javascript Regexp dynamic generation from variables?

How to construct two regex patterns into one?
For example I have one long pattern and one smaller, I need to put smaller one in front of long one.
<pre><code class="hljs language-ini">var pattern1 = ':\(|:=\(|:-\(';
var pattern2 = ':\(|:=\(|:-\(|:\(|:=\(|:-\('
str.match('/'+pattern1+'|'+pattern2+'/gi');
</code></pre>
This doesn't work. When I'm concatenating strings, all slashes are gone.

&gt; **Possible Duplicate:**  
&gt; [Random Color generator in Javascript](https://stackoverflow.com/questions/1484506/random-color-generator-in-javascript)  

&lt;!-- End of automatically inserted text --&gt;

I have some data I&#39;d like to display in different colors and I want to generate the colors randomly if possible.  How can I generate the Hex Color Code using JavaScript?

How do I randomly generate HTML hex color codes using JavaScript?

I think I&#39;m going crazy. I can&#39;t get it to work.  
I simply want to check if a user has liked my page with javascript in an `iFrame` app.

    FB.api({
    	method:		&quot;pages.isFan&quot;,
    	page_id:		my_page_id,
    },	function(response) {
    		console.log(response);
    		if(response){
    			alert(&#39;You Likey&#39;);
    		} else {
    			alert(&#39;You not Likey :(&#39;);
    		}
    	}
    );

This returns: False  
But I&#39;m a fan of my page so shouldn&#39;t it return true?!

How to check if a user likes my Facebook Page or URL using Facebook&#39;s API

I am trying to remove a string from a string in jQuery.

Here is the string:

    username1, username2 and username3 like this post.

I would like to remove `username1,` from this list.
I tried adding the list to an array using `.split(&#39;, &#39;)` but I got an error. I&#39;m assuming the error is because not every word has a comma after it.

I always want to remove the fist item from the list. `username1` is just an example username. The first item will always be the username of the currently logged in user if they have liked this post.

I have tried:

      var updated_list = $(&#39;#post_like_list&#39;).html().replace(&#39;username1, &#39;, &#39;&#39;);
      $(&#39;#post_like_list&#39;).html(updated_list);

But that didn&#39;t update the list. It does however update the list when using `.text()` instead of `.html()` but I have links inside the list which I need to preserve.

jQuery Remove string from string

Basically I&#39;m trying to pass a URL like this:

    www.foobar.com/?first=1&amp;second=12&amp;third=5

into a URL like this:

    http://www.facebook.com/sharer.php?&amp;t=FOOBAR&amp;u=http://www.foobar.com/first=12&amp;amp;sec=25&amp;amp;position=2

It only recognizes the first parameter. I&#39;m having the same problem with LinkedIn and Twitter sharing, so it must be something I&#39;m doing wrong.

How do I pass a URL with multiple parameters into a URL?

I&#39;m trying out Backbone.js, and one of the things I&#39;m trying is to make a call to a remote API, so I need to be able to override Backbone.sync, as I understand [the documentation][1].

There isn&#39;t an example of how to do that in the documentation itself, and there doesn&#39;t appear to be a google group for Backbone... can someone point out an example for doing this? 




  [1]: http://backbonejs.org/#Sync

How to override Backbone.sync?

Could someone please give a complete list of special characters that should be escaped?

I fear I don&#39;t know some of them.

List of all characters that should be escaped before put in to RegEx?

My password strength criteria is as below : 

- 8 characters length
- 2 letters in Upper Case
- 1 Special Character `(!@#$&amp;*)`
- 2 numerals `(0-9)`
- 3 letters in Lower Case


Can somebody please give me regex for same. All conditions must be met by password .

Regex to validate password strength

I&#39;ve been bashing my head against the wall trying to do what should be a simple regex - I need to match, eg `12po` where the `12` part could be one or two digits, then an optional non-alphanumeric like a `:.-,_` etc, then the string `po`.

The eventual use is going to be in `C#` but I&#39;d like it to work in regular `grep` on the command line as well. I haven&#39;t got access to `C#`, which doesn&#39;t help.

Regex for 1 or 2 digits, optional non-alphanumeric, 2 known alphas

I am trying to create something similar to this:

    var regexp_loc = /e/i;

except I want the regexp to be dependent on a string, so I tried to use new RegExp but I couldn&#39;t get what i wanted.

Basically I want the `e` in the above regexp to be a string variable but I fail with the syntax.

I tried something like this:

    var keyword = &quot;something&quot;;
    
    var test_regexp = new RegExp(&quot;/&quot; + keyword + &quot;/i&quot;);

Basically I want to search for a sub string in a larger string then replace the string with some other string, case insensitive.

regards,
alexander



Passing regex modifier options to RegExp object

So, I have this code:

    url = &#39;http://google.com&#39;
    linkregex = re.compile(&#39;&lt;a\s*href=[\&#39;|&quot;](.*?)[\&#39;&quot;].*?&gt;&#39;)
    m = urllib.request.urlopen(url)
    msg = m.read()
    links = linkregex.findall(msg)


But then python returns this error:

    links = linkregex.findall(msg)
    TypeError: can&#39;t use a string pattern on a bytes-like object

What did I do wrong?

Python TypeError on regex

One thing I like very much is reading about different programming languages. Currently, I&#39;m learning Scala but that doesn&#39;t mean I&#39;m not interested in Groovy, Clojure, Python, and many others. All these languages have a unique look and feel and some characteristic features. In the case of Clojure I don&#39;t understand one of these design decisions. As far as I know, Clojure puts great emphasis on its functional paradigm and pretty much forces you to use immutable &quot;variables&quot; wherever possible. So if half of your values are immutable, why is the language dynamically typed?

The Clojure website says:

&gt; First and foremost, Clojure is dynamic. That means that a Clojure program is not just something you compile and run, but something with which you can interact.

Well, that sounds completely strange. If a program is compiled you can&#39;t change it anymore. Sure you can &quot;interact&quot; with it, that&#39;s what UIs are used for but the website certainly doesn&#39;t mean a neat &quot;dynamic&quot; GUI.

**How does Clojure benefit from dynamical typing**

I mean the special case of Clojure and not general advantages of dynamic typing.

**How does the dynamic type system help improve functional programming**

Again, I know the pleasure of not spilling &quot;int a;&quot; all over the source code but type inference can ease a lot of the pain. Therefore I would just like to know how dynamic typing supports the concepts of a functional language.

Why is Clojure dynamically typed?

I&#39;m getting the following error:

&gt; &#39;object&#39; does not contain a definition for &#39;RatingName&#39;

When you look at the anonymous dynamic type, it clearly does have RatingName.

![Screenshot of Error][1]

I realize I can do this with a Tuple, but I would like to understand why the error message occurs.

  [1]: http://i.stack.imgur.com/nafnk.png

Dynamic Anonymous type in Razor causes RuntimeBinderException

I am going to summarize my problem into the following code snippet.

    List&lt;int&gt; list = new List&lt;int&gt;() { 5, 56, 2, 4, 63, 2 };
    Console.WriteLine(list.First());

Above code is working fine.

 Now I tried the following 

 

    dynamic dList = list;
     Console.WriteLine(dList.First());


but I am getting RuntimeBinderException.Why is it so?



Extension method and dynamic object

How can I call a method dynamically when its name is contained in a string variable? For example:

    class MyClass
      def foo; end
      def bar; end
    end

    obj = MyClass.new
    str = get_data_from_user  # e.g. `gets`, `params`, DB access, etc.
    str  #=&gt; &quot;foo&quot;
    # somehow call `foo` on `obj` using the value in `str`.

How can I do this? Is doing so a security risk?

How to call methods dynamically based on their name?

I hope someone can help me with this Javascript.

I have an Object called &quot;Settings&quot; and I would like to write a function that adds new settings to that object.

The new setting&#39;s name and value are provided as strings. The string giving the setting&#39;s name is then split by the underscores into an array. The new setting should get added to the existing &quot;Settings&quot; object by creating new nested objects with the names given by each part of the array, except the last part which should be a string giving the setting&#39;s value. I should then be able to refer to the setting and e.g. alert its value. I can do this in a static way like this...

    var Settings = {};
    var newSettingName = &quot;Modules_Video_Plugin&quot;;
    var newSettingValue = &quot;JWPlayer&quot;;
    var newSettingNameArray = newSettingName.split(&quot;_&quot;);

    Settings[newSettingNameArray[0]] = {};
    Settings[newSettingNameArray[0]][newSettingNameArray[1]] = {};
    Settings[newSettingNameArray[0]][newSettingNameArray[1]][newSettingNameArray[2]] = newSettingValue;
    
    alert(Settings.Modules.Mediaplayers.Video.Plugin);

... the part that creates the nested objects is doing this ...

    Settings[&quot;Modules&quot;] = {};
    Settings[&quot;Modules&quot;][&quot;Video&quot;] = {};
    Settings[&quot;Modules&quot;][&quot;Video&quot;][&quot;Plugin&quot;] = &quot;JWPlayer&quot;;


However, as the number of parts that make up the setting name can vary, e.g. a newSettingName could be &quot;Modules_Floorplan_Image_Src&quot;, I&#39;d like to do this dynamically using a function such as...

    createSetting (newSettingNameArray, newSettingValue);

    function createSetting(setting, value) {
    	// code to create new setting goes here
    }

Can anyone help me work out how to do this dynamically?

I presume there has to be a for...loop in there to itterate through the array, but I haven&#39;t been able to work out a way to create the nested objects.

If you&#39;ve got this far thanks very much for taking the time to read even if you can&#39;t help.



Content Type	Original Author	Original Content on Stackoverflow
Question	Somebody	View Question on Stackoverflow
Solution 1 - Javascript	Felix Kling	View Answer on Stackoverflow
Solution 2 - Javascript	adarshr	View Answer on Stackoverflow
Solution 3 - Javascript	alex	View Answer on Stackoverflow
Solution 4 - Javascript	Vinoth Narayan	View Answer on Stackoverflow

Javascript Regexp dynamic generation from variables?

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Solution 2 - Javascript

Solution 3 - Javascript

Solution 4 - Javascript

Google Authenticator available as a public service?

Method Overloading for null argument

Attributions