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Determine if variable is defined in Python [duplicate]

...ot much information in the question, so I believe only person asked it can select the best way to handle his case. – Denis Otkidach Oct 20 '09 at 7:58 140 ...
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How can I list all the deleted files in a Git repository?

... for me in PowerShell: git log --find-renames --diff-filter=D --summary | Select-String -Pattern "delete mode" | sort -u > deletions.txt share | i
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Is there any way to prevent input type=“number” getting negative values?

...tive number from keyboard. Solution is to prevent with key code: // Select your input element. var number = document.getElementById('number'); // Listen for input event on numInput. number.onkeydown = function(e) { if(!((e.keyCode > 95 && e.keyCode < 106) || (e....
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ruby 1.9: invalid byte sequence in UTF-8

...il if string.nil? return string if string.valid_encoding? string.chars.select { |c| c.valid_encoding? }.join end share | improve this answer | follow | ...
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How to create a directory in Java?

... Much better answer than the one selected as the correct one by the OP. Checking for existence of the directory before creating it should become a well-known anti-pattern. – mwhs Nov 24 '13 at 11:30 ...
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Emacs - Multiple columns one buffer

...sible in one window and into the portion visible in the other window, that selects the other window—again, treating the two as if they were parts of one large window. share | improve this answer ...
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How exactly to use Notification.Builder

... in addition to the selected answer here is some sample code for the NotificationCompat.Builder class from Source Tricks : // Add app running notification private void addNotification() { NotificationCompat.Builder builder = ...
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Syntax highlighting code with Javascript [closed]

... want it to highlight, as well as wordwrap. You can copy and paste code by selecting it normally instead of having to open a raw view like many others. It can be further customised by using the HTML5 data attribute data-sh or via specifying options at initialisation. A great stable choice which is u...
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How do I remove files saying “old mode 100755 new mode 100644” from unstaged changes in Git?

...lemode false Add in ~/.gitconfig: [core] filemode = false Just select one of them. share | improve this answer | follow | ...
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How to update gradle in android studio?

...Build Tools→Gradle→Use default Gradle wrapper (recommended) Step 2 (Select desired gradle version) File→Project Structure→Project The following table shows compatibility between Android plugin for Gradle and Gradle: Latest stable versions you can use with Android Studio 4.0.1 (July 2020):...