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Rails DB Migration - How To Drop a Table?
... table that I thought I was going to need, but now no longer plan on using it. How should I remove that table?
22 Answers
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What is a serialVersionUID and why should I use it?
...od an explanation as you'll get:
The serialization runtime associates with each serializable class a version number, called a serialVersionUID, which is used during deserialization to verify that the sender and receiver of a serialized object have loaded classes for that object that are compatib...
Convert Unicode to ASCII without errors in Python
My code just scrapes a web page, then converts it to Unicode.
11 Answers
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Cannot create an NSPersistentStoreCoordinator with a nil model
...and I'm getting the following error when running my code on my device, but it works fine on the simulator..
27 Answers
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What's the difference between ES6 Map and WeakMap?
Looking this and this MDN pages it seems like the only difference between Maps and WeakMaps is a missing "size" property for WeakMaps. But is this true? What's the difference between them?
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What is the HEAD in git?
There seems to be a difference between the last commit, the HEAD and the state of the file I can see in my directory.
5 Ans...
Browser statistics on JavaScript disabled [closed]
...ublically available statistics on the percentage of web users that browse with JavaScript disabled.
6 Answers
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Bootstrap 3 Navbar with Logo
I want to use the Bootstrap 3 default navbar with an image logo instead of text branding. What's the proper way of doing this without causing any issues with different screen sizes? I assume this a common requirement, but I haven't yet seen a good code sample. A key requirement other than having acc...
Is there a better way to run a command N times in bash?
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edited Nov 7 '18 at 18:52
Joshua Pinter
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Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?
If I understand correctly, each and every object in Javascript inherits from the Object prototype, which means that each and every object in Javascript has access to the hasOwnProperty function through its prototype chain.
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