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setState vs replaceState in React.js
... that this.state is {foo: 42}
this.setState({bar: 117})
// this.state is now {foo: 42, bar: 117}
this.setState({foo: 43})
// this.state is now {foo: 43, bar: 117}
this.replaceState({baz: "hello"})
// this.state. is now {baz: "hello"}
Take note of this from the docs, though:
setState() d...
How to run Selenium WebDriver test cases in Chrome?
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Now that's a cumbersome solution. I'd advise you to change this if it's what you use nowadays.
– aimbire
Mar 21 '13 at 17:19
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Is there a string math evaluator in .NET?
... this is marked as the answer, it was 10 years ago and COM is kind of dead now. I prefer the DataTable.Compute answer below.
– dwilliss
Sep 9 '19 at 19:40
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python requests file upload
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If upload_file is meant to be the file, use:
files = {'upload_file': open('file.txt','rb')}
values = {'DB': 'photcat', 'OUT': 'csv', 'SHORT': 'short'}
r = requests.post(url, files=files, data=values)
and requests will sen...
Python try-else
... print('if this prints, we had no error!') # won't print!
print('And now we have left the try block!') # will print!
And now,
>>> handle_error()
handled a RuntimeError, no big deal.
And now we have left the try block!
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Build fat static library (device + simulator) using Xcode and SDK 4+
... files, PLIST files etc from your library!) - see below (scroll to bottom)
now supports iPhone5 (using Apple's workaround to the bugs in lipo). NOTE: the install instructions have changed (I can probably simplify this by changing the script in future, but don't want to risk it now)
"copy headers" se...
How can I develop for iPhone using a Windows development machine?
...nged its licensing agreement in regards to virtualization. Source: VMWare KnowledgeBase
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Converting Storyboard from iPhone to iPad
I have an iPhone application which has a storyboard. Now I want to provide an iPad application too. So I asked me whether there is a function which helps me convert my iPhone storyboard to an iPad storyboard.
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Automatically open Chrome developer tools when new tab/new window is opened
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UPDATE 2:
See this answer . - 2019-11-05
You can also now have it auto-open Developer Tools in Pop-ups if they were open where you opened them from. For example, if you do not have Dev Tools open and you get a popup, it won't open with Dev Tools. But if you Have Dev Tools Open a...
How does one get started with procedural generation?
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Procedural content generation is now all written for the GPU, so you'll need to know a shader language. That means GLSL or HLSL. These are languages tied to OpenGL and DirectX respectively.
While my personal preference is for Dx11 / HLSL due to speed, an ...