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What can I use instead of the arrow operator, `->`?
... them inconsistently. Becomes really annoying when you work with templates and don't know the precise type.
– Konrad Rudolph
Oct 21 '08 at 10:15
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How to assign Profile values?
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I had the same problem today, and learned a lot.
There are two kinds of project in Visual Studio -- "Web Site Projects" and "Web Application Projects." For reasons which are a complete mystery to me, Web Application Projects cannot use Profile. directly....
How can I output a UTF-8 CSV in PHP that Excel will read properly?
...s got to be UTF-8. I open this file in TextEdit or TextMate or Dreamweaver and it displays UTF-8 characters properly, but if I open it in Excel it's doing this silly íÄ kind of thing instead. Here's what I've got at the head of my document:
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The Concept of 'Hold space' and 'Pattern space' in sed
I'm confused by the two concepts in sed: hold space and pattern space. Can someone help explain them?
3 Answers
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Windows batch file file download from a URL
...-OutFile package.zip
From a batch file they are called:
powershell -Command "(New-Object Net.WebClient).DownloadFile('http://www.example.com/package.zip', 'package.zip')"
powershell -Command "Invoke-WebRequest http://www.example.com/package.zip -OutFile package.zip"
(PowerShell 2.0 is available...
How do you see the entire command history in interactive Python?
I'm working on the default python interpreter on Mac OS X, and I Cmd + K (cleared) my earlier commands. I can go through them one by one using the arrow keys. But is there an option like the --history option in bash shell, which shows you all the commands you've entered so far?
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Open and write data to text file using Bash?
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What if my text is something like this and for any reason, I can't use curl or wget?
– asedsami
Dec 28 '16 at 3:53
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Perform debounce in React.js
...is some initial wiring but you are composing primitive blocks on your own, and you can make your own custom hook so that you only need to do this once.
// Generic reusable hook
const useDebouncedSearch = (searchFunction) => {
// Handle the input text state
const [inputText, setInputText] = ...
Efficient evaluation of a function at every cell of a NumPy array
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You could just vectorize the function and then apply it directly to a Numpy array each time you need it:
import numpy as np
def f(x):
return x * x + 3 * x - 2 if x > 0 else x * 5 + 8
f = np.vectorize(f) # or use a different name if you want to keep the...
Is it possible to use Visual Studio on macOS?
...hich also now supports debugging. Thus, if you install Visual Studio Code and .NET Core on a Mac in OS X you can quite freely edit and compile and run and debug and share your code with Visual Studio 2017 on a PC.
– DavidMWilliams
Feb 2 '17 at 5:16
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