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Get local IP address

... internet there are several places that show you how to get an IP address. And a lot of them look like this example: 25 Ans...
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How do I detect “shift+enter” and generate a new line in Textarea?

...ndToStart', re); return rc.text.length; } return 0; } And then replacing the textarea value accordingly when Shift + Enter together , submit the form if Enter is pressed alone. $('textarea').keyup(function (event) { if (event.keyCode == 13) { var content = this.val...
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Use JavaScript to place cursor at end of text in text input element

What is the best way (and I presume simplest way) to place the cursor at the end of the text in a input text element via JavaScript - after focus has been set to the element? ...
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mongodb: insert if not exists

...-find-else-update block entirely. It will insert if the key doesn't exist and will update if it does. Before: {"key":"value", "key2":"Ohai."} After: {"key":"value", "key2":"value2", "key3":"value3"} You can also specify what data you want to write: data = {"$set":{"key2":"value2"}} Now yo...
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How to center icon and text in a android button with width set to “fill parent”

I want to have an Android Button with icon+text centered inside it. I'm using the drawableLeft attribute to set the image, this works well if the button has a width of "wrap_content" but I need to stretch to max width so I use width "fill_parent" . This moves my icon straight to the left of the b...
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PHP-FPM doesn't write to error log

... This worked for me: ; Redirect worker stdout and stderr into main error log. If not set, stdout and ; stderr will be redirected to /dev/null according to FastCGI specs. ; Default Value: no catch_workers_output = yes Edit: The file to edit is the file that configure y...
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How can I read command line parameters from an R script?

I've got a R script for which I'd like to be able to supply several command-line parameters (rather than hardcode parameter values in the code itself). The script runs on Windows. ...
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Is there a simple way to remove unused dependencies from a maven pom.xml?

I have a large Maven project with many modules and many pom.xml files. The project has changed and I suspect the pom's contain some unnecessary dependencies. Is there is a command which removes any unused dependencies from a pom? ...
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Xcode can only refactor C and Objective-C code. How to rename swift class name in Xcode 6?

...hen I select Refactor -> Rename, it gives error Xcode can only refactor C and Objective-C code . 6 Answers ...
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How do I get PHP errors to display?

I have checked my PHP ini file ( php.ini ) and display_errors is set and also error reporting is E_ALL . I have restarted my Apache webserver. ...