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How do I convert a Ruby class name to a underscore-delimited symbol?
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Thanks. I was afraid this was a Rails extension. :) No worries, as I am actually using Rails.
– Josh Glover
Apr 11 '11 at 14:25
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Ruby Regexp group matching, assign variables on 1 line
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You have to decide whether it is a good idea, but ruby regexp can (automagically) define local variables for you!
I am not yet sure whether this feature is awesome or just totally crazy, but your regex can define local variables.
ryan_str...
Gradle, “sourceCompatibility” vs “targetCompatibility”?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Filtering a list based on a list of booleans
...paring things to True, this is usually not necessary. Instead of if filter[idx]==True: ..., you can simply write if filter[idx]: ....
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What is an SDL renderer?
...Rect* dstrect)
Where you want to render the texture in the window. If the width and height of this SDL_Rect is smaller or larger than the dimensions of the texture itself, the texture will be stretched according to this SDL_Rect
SDL_RenderPresent(renderer);
The other SDL_Render* functions draws t...
How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the oth
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lmCpGSynXNcpZ/06+vofGi/2MlpQZNhHAo8eayMp6FcvNucIpUndo1X8dKMv3Y26
ZQIDAQAB
-----END PUBLIC KEY-----');
$rsa->setPublicKey();
echo $rsa->getPublicKey(CRYPT_RSA_PUBLIC_FORMAT_PKCS1_RAW);
The base64-encoded stuff appears to match even though the header says BEGIN PUBLIC KEY and not BEGI...
Upload files with HTTPWebrequest (multipart/form-data)
...g directly to the request stream. Here is the result:
public static void HttpUploadFile(string url, string file, string paramName, string contentType, NameValueCollection nvc) {
log.Debug(string.Format("Uploading {0} to {1}", file, url));
string boundary = "---------------------...
Align button at the bottom of div using CSS
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@Harry Joy: Did you also apply position: relative to the element that's containing your form+button?
– thirtydot
Apr 28 '11 at 10:43
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How to read data from a zip file without having to unzip the entire file
...enes, what DotNetZip does in the constructor is seek to the "directory" inside the zipfile, and then read it and populate the list of entries. At that point, if your app calls Extract() on one entry, DotNetZip seeks to the proper place in the zip file, and decompresses the data for just that entry....
python numpy ValueError: operands could not be broadcast together with shapes
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It's possible that the error didn't occur in the dot product, but after.
For example try this
a = np.random.randn(12,1)
b = np.random.randn(1,5)
c = np.random.randn(5,12)
d = np.dot(a,b) * c
np.dot(a,b) will be fine; however np.dot(a, b) * c is clearly...