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How to import local packages without gopath
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php var_dump() vs print_r()
...rinted by print_r is much more in readable format where as var_dump prints raw values.
print_r function can be used in many contexts where as var_dump can be used in debugging purposes mainly since it can't return value.
sh...
Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
...if you had used the more semantically named permission symbols rather than raw magic numbers, e.g. for 664:
#!/usr/bin/env python3
import os
import stat
os.chmod(
'myfile',
stat.S_IRUSR |
stat.S_IWUSR |
stat.S_IRGRP |
stat.S_IWGRP |
stat.S_IROTH
)
This is documented at h...
Why doesn't Ruby support i++ or i-- (increment/decrement operators)?
The pre/post increment/decrement operator ( ++ and -- ) are pretty standard programing language syntax (for procedural and object-oriented languages, at least).
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How can I display just a portion of an image in HTML/CSS?
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Can I escape html special chars in javascript?
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@jamix You can not do a global replacement with raw strings, while modern browser engines optimize simple regular expression pretty good.
– bjornd
May 30 '14 at 15:43
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What is the fundamental difference between WebSockets and pure TCP?
...easier to send messages over the wire via the Application Layer instead of raw bytes at the Transport Layer.
Underlying WebSockets is TCP, it's just abstracted away for simplicity.
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Strange out of memory issue while loading an image to a Bitmap object
... BitmapFactory.Options options, int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
final int halfHeight ...
Verify a certificate chain using openssl verify
...rtificate.
The ca-bundle must be made up in excactly the right processing order, this means, the first needed certificate (the intermediate certificate which signs your certificate) comes first in the bundle. Then the cross-signing-cert is needed.
Usually your CA (the authority who signed your ce...