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Why does Ruby have both private and protected methods?
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Ah, ok that makes a lot more sense. My misunderstanding came from thinking private vs protected had to do whether a subclass could inherit a method, but it's actually about where the method can be called from. Thanks!
– Kyle Slattery
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Named placeholders in string formatting
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You can set a custom VariableResolver and throw an Exception if the key isn't present in the map.
– Mene
Apr 21 '16 at 14:21
7
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Replace transparency in PNG images with white background
I've got some PNG images with transparency, and I need to create versions with the image layer composed onto a white background. I've tried various things with Image Magick "convert" operations, but either nothing happens at all or I get an error. I don't want to go to an intermediate JPG form bec...
How to inspect Javascript Objects
...for inspection, unless you use a "spy"; basically, you override the object and write some code which does a for-in loop inside the object's context.
For in looks like:
for (var property in object) loop();
Some sample code:
function xinspect(o,i){
if(typeof i=='undefined')i='';
if(i.leng...
AngularJS toggle class using ng-class
... @Stewie Faaakin gorgeous mate, love how it looks like real code and not some bastardized expression markup :D
– mattdlockyer
Jan 21 '14 at 17:33
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Unable to find a locale path to store translations for file __init__.py
...h {% trans %} in my templates. However, when I execute the following command in my app folder, I receive an error message:
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Javascript - How to detect if document has loaded (IE 7/Firefox 3)
..."interactive" once it is finished parsing but still loading sub-resources, and "complete" once it has loaded.
-- document.readyState at Mozilla Developer Network
So if you only need the DOM to be ready, check for document.readyState === "interactive". If you need the whole page to be ready, inc...
How to create an HTTPS server in Node.js?
Given an SSL key and certificate, how does one create an HTTPS service?
9 Answers
9
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Moment.js transform to date object
... answered Nov 4 '14 at 20:06
ChandrewChandrew
13.8k44 gold badges2020 silver badges3939 bronze badges
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Android SQLite DB When to Close
I am working with a SQLite database on android. My database manager is a singleton and right now opens a connection to the database when it is initialized. It is safe to leave the database open the entire time so that when someone calls my class to work with the database it is already open? Or shoul...