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Why should eval be avoided in Bash, and what should I use instead?
...to enumerate the indices quickly, and you're on bash 2+, this
# can be cut down to one line per operation:
declare "VAR_$key"="$value" # Store
echo "`var_key="VAR_$key" echo -n "${!var_key}"`" # Retrieve
# If you're using more complex values, you'll need to hash your keys:...
What are some better ways to avoid the do-while(0); hack in C++?
...uld be moved to a separate function just to keep the size of each function down to an easy-to-reason-about size. If you don't want to pay for a function call, mark it forceinline.
– Ben Voigt
Aug 30 '13 at 3:49
...
Sharing link on WhatsApp from mobile website (not application) for Android
...id, WhatsApp web, IOS etc.
You just need to use this format:
<a href="https://api.whatsapp.com/send?phone=whatsappphonenumber&text=urlencodedtext"></a>
UPDATE-- Use this from now(Nov-2018)
<a href="https://wa.me/whatsappphonenumber/?text=urlencodedtext"></a>
U...
Static linking vs dynamic linking
... not an optimization issue, because they both involve separate compilation down to object files. However, this is not required: a compiler can in principle, "compile" "static libraries" to a digested AST form initially, and "link" them by adding those ASTs to the ones generated for the main code, th...
How expensive is RTTI?
...y type across module boundaries without RTTI. Please consider that up- and down-casting is required.
– Deduplicator
May 12 '14 at 19:05
16
...
Which Architecture patterns are used on Android? [closed]
...–controller works fine, but there are a couple of "issues". It all comes down to how you perceive the Android Activity class. Is it a controller, or is it a view?
The actual Activity class doesn't extend Android's View class, but it does, however, handle displaying a window to the user and also h...
Bold & Non-Bold Text In A Single UILabel?
...ilar results with a bit
// more of code. Interested people please look down the old answer.
// Now I am just being lazy so :p
[_label setText:text];
}
There is a couple of good introductory blog posts here from guys at invasivecode that explain with more examples uses of NSAttributedS...
Website screenshots
...age Insight api.
Just need to call it's api with params screenshot=true.
https://www.googleapis.com/pagespeedonline/v1/runPagespeed?
url=https://stackoverflow.com/&key={your_api_key}&screenshot=true
For mobile site view pass &strategy=mobile in params,
https://www.googleapis.com/pag...
How to update npm
...PRISE
For full enterprise practice consider nodesource.com:
curl -sL https://deb.nodesource.com/setup | sudo bash -
as described here.
OTHER ENTERPRISE
For non-debian distributions check out on the node github wiki
https://github.com/joyent/node/wiki/installing-node.js-via-package-manage...
Facebook access token server-side validation for iPhone app
... user access token belongs to your App:
1) Generate an App Access token
(https://developers.facebook.com/docs/howtos/login/login-as-app/)
https://graph.facebook.com/oauth/access_token?
client_id=YOUR_APP_ID
&client_secret=YOUR_APP_SECRET
&grant_type=client_credentials
2) Debug the User ...