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How to remove leading and trailing white spaces from a given html string?
... "[ ]" is exactly the same as " ". A character grouping of exactly one character is.. well... exactly one character.
– Flimzy
Mar 14 '15 at 23:40
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What is the purpose of the implicit grant authorization type in OAuth 2?
...login with his Facebook account on Kickstarter. In this case the client is one of the Kickstarter's servers, which handles the user logins. This server gets the access token and the refresh token from Facebook. Thus this type of client considered to be "secure", due to restricted access, the tokens ...
How can I use a file in a command and redirect output to the same file without truncating it?
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try this simple one
grep -v 'seg[0-9]\{1,\}\.[0-9]\{1\}' file_name | tee file_name
Your file will not be blank this time :) and your output is also printed to your terminal.
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Clicking a button within a form causes page refresh
I have a form in Angular that has two buttons tags in it. One button submits the form on ng-click . The other button is purely for navigation using ng-click . However, when this second button is clicked, AngularJS is causing a page refresh which triggers a 404. I’ve dropped a breakpoint in the f...
Capitalize first letter. MySQL
Does any one know the equivalent to this TSQL in MySQL parlance?
13 Answers
13
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Adding a column to an existing table in a Rails migration
... names in Rails are always plural (to match DB conventions). Example using one of the steps mentioned previously-
rails generate migration addEmailToUsers
rake db:migrate
Or
You can change the schema in from db/schema.rb, Add the columns you want in the SQL query.
Run this command: rake db:...
Unable to add window — token android.os.BinderProxy is not valid; is your activity running?
...s is the best way to tell if your activity is running, see this answer for one method of doing so:
Check whether activity is active
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Is there a way to programmatically scroll a scroll view to a specific edit text?
...o, and you're basically telling the UI thread, when you can, after you've done all you had to do before now, do this (scroll). You're basically putting the scroll in the queue and letting the thread do it when it can, respecting the order of things it was doing before you requested it.
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How to access command line parameters?
...he former iterates over Strings (that are easy to work with) but panics if one of the arguments is not valid unicode. The latter iterates over OsStrings and never panics.
Note that the first element of the iterator is the name of the program itself (this is a convention in all major OSes), so the f...
Add x and y labels to a pandas plot
..., the index x-axis label is automatically set to the Index name, if it has one. so df2.index.name = 'x label' would work too.
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