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Getting “bytes.Buffer does not implement io.Writer” error message
..., but writes to a string instead of a file or file-like object. I thought bytes.Buffer would work since it implements Write(p []byte) . However when I try this:
...
Try/Catch block in PHP not catching Exception
...n another language like C# (Csharp).
If you do this:
try{
//division by zero
$number = 5/0;
}
catch(Exception $ex){
echo 'Got it!';
}
You will not see the 'Got it!' message never. Why? It's just because PHP always needs an Exception to be "Thrown". You need to set your own error hand...
How do I execute a bash script in Terminal?
...
Change your directory to where script is located by using cd command
Then type
bash program-name.sh
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How to get a pixel's x,y coordinate color from an image?
...as your image and has the image drawn on it.
var img = document.getElementById('my-image');
var canvas = document.createElement('canvas');
canvas.width = img.width;
canvas.height = img.height;
canvas.getContext('2d').drawImage(img, 0, 0, img.width, img.height);
After that, when a user clicks, use...
Performant Entity Serialization: BSON vs MessagePack (vs JSON)
...e "ObjectId", "Min key", "UUID" or "MD5" (I think these types are required by MongoDB). These types are not compatible with JSON. That means some type information can be lost when you convert objects from BSON to JSON, but of course only when these special types are in the BSON source. It can be a d...
What is the 'cls' variable used for in Python classes?
...lass method. Check this reference for further details.
EDIT: As clarified by Adrien, it's a convention. You can actually use anything but cls and self are used (PEP8).
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Nested or Inner Class in PHP
...B needs access to
members of A that would otherwise be declared private. By hiding class
B within class A, A's members can be declared private and B can access
them. In addition, B itself can be hidden from the outside world.
Nested classes can lead to more readable and maintainable code.
...
What is your preferred style for naming variables in R? [closed]
... ESS is pretty widely used you won't see many underscores in code authored by ESS users (and that set includes a bunch of R Core as well as CRAN authors, excptions like Hadley notwithstanding);
dots are evil too because they can get mixed up in simple method dispatch; I believe I once read comments ...
Update statement with inner join on Oracle
...SET t.OLD = t.NEW
It depends if the inline view is considered updateable by Oracle
( To be updatable for the second statement depends on some rules listed
here ).
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How can I load an object into a variable name that I specify from an R data file?
...ondingly, save and restore all object's attributes, including ones created by an application (via attr)? I tried to use this approach instead of save and load, trying to find a workaround for my problem. Howver, it doesn't seem to be the case, unless I'm doing something wrong: stackoverflow.com/ques...