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Could not execute editor
I don't often have to modify multiple commit messages, but it has happened once or twice and I don't ever remember seeing this. I hope someone else has. When I git rebase -i HEAD~7 , the expected list opens in vi exactly as expected. I change the pick values to edit where appropriate and then ...
HashMap get/put complexity
...e are used to saying that HashMap get/put operations are O(1). However it depends on the hash implementation. The default object hash is actually the internal address in the JVM heap. Are we sure it is good enough to claim that the get/put are O(1) ?
...
Formatting a number with exactly two decimals in JavaScript
...rns a string.
IMPORTANT: Note that toFixed does not round 90% of the time, it will return the rounded value, but for many cases, it doesn't work.
For instance:
2.005.toFixed(2) === "2.00"
UPDATE:
Nowadays, you can use the Intl.NumberFormat constructor. It's part of the ECMAScript Internationalizatio...
Node.js spawn child process and get terminal output live
... so on and so forth. Now I thought I would be able to tackle this problem with this model.
8 Answers
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Should I use `import os.path` or `import os`?
...tion , os.path is a module. Thus, what is the preferred way of importing it?
6 Answers
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(this == null) in C#!
...o a bug that was fixed in C# 4, the following program prints true . (Try it in LINQPad)
6 Answers
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What are the differences between Abstract Factory and Factory design patterns?
...rence was when I learnt them.
Because the factory method is just a method, it can be overridden in a subclass, hence the second half of your quote:
... the Factory Method pattern uses
inheritance and relies on a subclass
to handle the desired object
instantiation.
The quote assumes that an object ...
Something better than .NET Reflector? [closed]
....NET Reflector back in the day, but ever since Red Gate Software took over it has gone downhill dramatically. Now it forces me to update (which is absolutely ridiculous), half the time the update doesn't go smoothly, and it is increasingly hindering my productivity with each update. I am sick of it,...
What is the difference between a weak reference and an unowned reference?
...ng the referred object).
But why two keywords? This distinction has to do with the fact that Optional types are built-in the Swift language. Long story short about them: optional types offer memory safety (this works beautifully with Swift's constructor rules - which are strict in order to provide t...
JavaScript file upload size validation
Is there any way to check file size before uploading it using JavaScript?
13 Answers
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