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Is returning null bad design? [closed]
... getItems(); // Could potentially return null.
// Two possible code paths now so harder to test.
if (c != null) {
for (Item item : c) {
// Process item.
}
}
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unit testing of private functions with mocha and node.js
... or something else that can communicate to the module "you're being tested now". The instances where I've had to do this were in a RequireJS environment, and I've used module.config for this purpose.
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Sending JWT token in the headers with Postman
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Do you know what part of the field is encrypted? It appears that the data right after the last '.' separator is giving me what looks like garbage characters. I assume this is actually information encrypted by the Token generator?
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Two-way encryption: I need to store passwords that can be retrieved
...ime to show you different instances will still properly decrypt the data.
Now, how does it work/why use it over another solution:
Keys
The keys are not directly used. Instead, the key is stretched by a standard PBKDF2 derivation.
The key used for encryption is unique for every encrypted block ...
PHP random string generator
...ead. It also doesn't allow characters to repeat.
One more way.
UPDATED (now this generates any length of string):
function generateRandomString($length = 10) {
return substr(str_shuffle(str_repeat($x='0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ', ceil($length/strlen($x)) )...
How to trigger HTML button when you press Enter in textbox?
...t to the button you'd like to be default and type=button to other buttons. Now in the form below you can hit Enter in any input fields, and the Render button will work (despite the fact it is the second button in the form).
Example:
<button id='close_renderer_button' class='btn btn-success...
Iterating through a JSON object
...nt:
from __future__ import print_function
for song in json_object:
# now song is a dictionary
for attribute, value in song.items():
print(attribute, value) # example usage
NB: You could use song.iteritems instead of song.items if in Python 2.
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Should try…catch go inside or outside a loop?
...on was getting on my nerves! In the case of optimizations, since we can't know which way the performance would be affected, I guess were back to try-it-and-test (as always).
– Jeffrey L Whitledge
Sep 27 '08 at 18:35
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Using .otf fonts on web browsers
... src: url("path/GraublauWebBold.otf") format("opentype");
}
// Edit: OTF now works in most browsers, see comments
However if you want to support a wide variety of browsers i would recommend you to switch to WOFF and TTF font types. WOFF type is implemented by every major desktop browser, while the...
Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])
...$VAR is empty.
Your version does not work because it evaluates to [ -e ]. Now in this case, bash simply checks if the single argument (-e) is a non-empty string.
From the manpage:
test and [ evaluate conditional expressions using a set of rules based on the number of arguments. ...
1 argu...