This are some ways to do it....there are more like regex

    ​def s = &quot;\t&quot;​​
    
    assert s[0] == &quot;\t&quot;
    assert s.startsWith(&quot;\t&quot;)

I&#39;m not too good with regular expressions, but with PHP I&#39;m wanting to remove the `style` attribute from HTML tags in a string that&#39;s coming back from TinyMCE.

So change `&lt;p style=&quot;...&quot;&gt;Text&lt;/p&gt;` to just vanilla `&lt;p&gt;Test&lt;/p&gt;`.

How would I achieve this with something like the `preg_replace()` function?

Remove style attribute from HTML tags

I want to have my table rows highlighted on mouse over, but I have yet to find a way to do it that isn&#39;t using Javascript. Is this not possible in CSS?

I&#39;ve tried this:

    tr:hover {
    	background: #000;
    }

But that doesn&#39;t work. Using `td:hover` works, but I want to change the background colour of the whole table row.

Is there a pure CSS/HTML way to do it, or am I going to have to resort to Javascript?

Changing background colour of tr element on mouseover

How do I check if a string starts with a tab in Groovy?

Check if string starts with tab

<p>How do I check if a string starts with a tab in Groovy?</p>


I have some server code that is generating thumbnails when an image is uploaded.  The issue is that when the image was taken and the camera/device was rotated, the thumbnails are rotated, even though the full size images themselves are displayed in the correct orientation in any image viewing software.  This is only happening with jpgs.

Using Preview on OSX, I can see that jpgs have orientation metadata embedded within.  When I use ImageTools (Grails Plugin) to generate a thumbnail, the EXIF metadata is not in the thumbnail, which is why the thumbnails appear rotated. 

Via offline conversations, I have learned that while it is relatively easy to read EXIF metadata, there is no easy way to write it, which is why the data is lost when generating a jpg thumbnail.

So it seems I have two options: 

1.  Use ImageMagick to generate the thumbnails.  The downside is it requires installed more software on our servers.
2.  Read the EXIF Orientation data is code and rotate the thumbnail appropriately.

Does anyone know of any other options?



How to rotate JPEG images based on the orientation metadata?

Method to copy entire directory contents to another directory in java or groovy?

Copy entire directory contents to another directory?

I need to store a value in a variable in one method and then I need to use that value from that variable in another method or closure. How can I share this value?

How do I create and access the global variables in Groovy?

I am just starting out with Groovy.   I couldn&#39;t find any examples anywhere of how to handle arguments to a Groovy script and so I hacked this method myself.   There must be a better way of doing this?  If so, I am looking for this better way, since I am probably overlooking the obvious.

    import groovy.lang.Binding;
    Binding binding = new Binding();
    int x = 1
    for (a in this.args) {
      println(&quot;arg$x: &quot; + a)
      binding.setProperty(&quot;arg$x&quot;, a);
      x=x+1
    }
    println binding.getProperty(&quot;arg1&quot;)
    println binding.getProperty(&quot;arg2&quot;)
    println binding.getProperty(&quot;arg3&quot;)

How to capture arguments passed to a Groovy script?

I&#39;ll explain by example:

Elvis Operator (?: )

&gt; The &quot;Elvis operator&quot; is a shortening
&gt; of Java&#39;s ternary operator. One
&gt; instance of where this is handy is for
&gt; returning a &#39;sensible default&#39; value
&gt; if an expression resolves to false or
&gt; null. A simple example might look like
&gt; this:

    def gender = user.male ? &quot;male&quot; : &quot;female&quot;  //traditional ternary operator usage
    
    def displayName = user.name ?: &quot;Anonymous&quot;  //more compact Elvis operator

&gt; Safe Navigation Operator (?.)
&gt; 
&gt; The Safe Navigation operator is used
&gt; to avoid a NullPointerException.
&gt; Typically when you have a reference to
&gt; an object you might need to verify
&gt; that it is not null before accessing
&gt; methods or properties of the object.
&gt; To avoid this, the safe navigation
&gt; operator will simply return null
&gt; instead of throwing an exception, like
&gt; so:

    def user = User.find( &quot;admin&quot; )           //this might be null if &#39;admin&#39; does not exist
    def streetName = user?.address?.street    //streetName will be null if user or user.address is null - no NPE thrown


Content Type	Original Author	Original Content on Stackoverflow
Question	Natta	View Question on Stackoverflow
Solution 1 - Groovy	jjchiw	View Answer on Stackoverflow

Check if string starts with tab

Groovy Problem Overview

Groovy Solutions

Solution 1 - Groovy

Changing background colour of tr element on mouseover

Remove style attribute from HTML tags

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