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Remove multiple whitespaces
...getting $row['message'] from a MySQL database and I need to remove all whitespace like \n \t and so on.
15 Answers
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How can I delete a service in Windows?
...pt as an administrator, not just logged in as the administrator, but also with administrative rights. If you get errors above about not having the necessary access rights to stop and/or delete the service, run the command prompt as an administrator. You can do this by searching for the command promp...
Adding placeholder text to textbox
I am looking for a way to add placeholder text to a textbox like you can with a textbox in html5.
24 Answers
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Adding local .aar files to Gradle build using “flatDirs” is not working
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Building upon Josiah's answer, here's how I got it to work.
Following his instructions (under edit) (File -> New-> New Module -> Import .JAR/.AAR) and import your .AAR.
Then in your project build.gradle (not the top level one, the one under 'app') add the foll...
Foreign key constraint may cause cycles or multiple cascade paths?
...ths and, rather than trying to work out whether any cycles actually exist, it assumes the worst and refuses to create the referential actions (CASCADE): you can and should still create the constraints without the referential actions. If you can't alter your design (or doing so would compromise thing...
Flatten nested dictionaries, compressing keys
...ay you would flatten a nested list, you just have to do the extra work for iterating the dict by key/value, creating new keys for your new dictionary and creating the dictionary at final step.
import collections
def flatten(d, parent_key='', sep='_'):
items = []
for k, v in d.items():
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Regular expression to match DNS hostname or IP Address?
... host names. Depending on the language you use \ could have to be escaped with \.
ValidHostnameRegex is valid as per RFC 1123. Originally, RFC 952 specified that hostname segments could not start with a digit.
http://en.wikipedia.org/wiki/Hostname
The original specification of
hostnames in...
Laravel - Eloquent or Fluent random row
... records
// 5 indicates the number of records
User::inRandomOrder()->limit(5)->get();
// get one random record
User::inRandomOrder()->first();
or using the random method for collections:
User::all()->random();
User::all()->random(10); // The amount of items you wish to receive
Larav...
Ruby : How to write a gem? [closed]
I'd like to write a package for Ruby and make it available as a gem.
What are the tools, steps and pitfalls ?
Are there any good tutorials, screencasts, etc., which helped you learning how to do it ?
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Equals(=) vs. LIKE
When using SQL, are there any benefits of using = in a WHERE clause instead of LIKE ?
15 Answers
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