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Can I see changes before I save my file in Vim?

I use Vim. I open a file. I edit it and I want to see what I've edited before I save it. 14 Answers ...
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Laravel requires the Mcrypt PHP extension

... The web enabled extensions and command line enabled extensions can differ. Run php -m in your terminal and check to see if mcrypt is listed. If it's not then check where the command line is loading your php.ini file from by running php --ini from your ...
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Why do we have to normalize the input for an artificial neural network?

...n MLP [multilayer perceptron], then it is rarely strictly necessary to standardize the inputs, at least in theory. The reason is that any rescaling of an input vector can be effectively undone by changing the corresponding weights and biases, leaving you with the exact same outputs as you ha...
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Wget output document and headers to STDOUT

I'm trying to output document body and its headers to stdout with wget by wget -S -O - http://google.com 5 Answers ...
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Downloading a picture via urllib and python

So I'm trying to make a Python script that downloads webcomics and puts them in a folder on my desktop. I've found a few similar programs on here that do something similar, but nothing quite like what I need. The one that I found most similar is right here ( http://bytes.com/topic/python/answers/8...
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Default profile in Spring 3.1

In my application I have beans annotated with @Profile("prod") and @Profile("demo") . The first one, as you can guess :), is used on beans that connect to production DB and second one annotates beans that use some fake DB ( HashMap or whatever)- to make development faster. ...
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git undo all uncommitted or unsaved changes

...rying to undo all changes since my last commit. I tried git reset --hard and git reset --hard HEAD after viewing this post . I responds with head is now at 18c3773... but when I look at my local source all the files are still there. What am I missing? ...
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Direct vs. Delegated - jQuery .on()

I am trying to understand this particular difference between the direct and delegated event handlers using the jQuery .on() method . Specifically, the last sentence in this paragraph: ...
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Will code in a Finally statement fire if I return a value in a Try block?

I'm reviewing some code for a friend and say that he was using a return statement inside of a try-finally block. Does the code in the Finally section still fire even though the rest of the try block doesn't? ...
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Difference between Groovy Binary and Source release?

i have been seeing the words binary and source release in many websites download sections. 3 Answers ...