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Using the HTML5 “required” attribute for a group of checkboxes?
... checked. Following is your html code (make sure that you add required for all the elements in the group.)
<input type="checkbox" name="option[]" id="option-1" value="option1" required/> Option 1
<input type="checkbox" name="option[]" id="option-2" value="option2" required/> Option 2
&l...
Label encoding across multiple columns in scikit-learn
...t; pd.DataFrame({col: df[col].astype('category').cat.codes for col in df}, index=df.index)
location owner pets
0 1 1 0
1 0 2 1
2 0 0 0
3 1 1 2
4 1 3 1
5 0 2 1
To create a mapping dictionary, ...
OAuth with Verification in .NET
...ee from the code, the way to get to oauth parameters is via a string-based indexer, something like a dictionary. The AcquireRequestToken method sends an oauth-signed request to the URL of the service that grants request tokens, aka temporary tokens. For Twitter, this URL is "https://api.twitter.co...
Troubleshooting “The use statement with non-compound name … has no effect”
...
PHP's use isn't the same as C++'s using namespace; it allows you to define an alias, not to "import" a namespace and thus henceforth omit the namespace qualifier altogether.
So, you could do:
use Blog\Article as BA;
... to shorten it, but you cannot get rid of it entirely.
...
Why are regular expressions so controversial? [closed]
...ions. And not just slow, but the performance of the regex engine can be totally unpredictable when faced with arbitrary (user-supplied) inputs.
– Pacerier
Dec 1 '15 at 21:53
...
Stash changes while keeping the changes in the working directory in Git
...stage the changes you want to keep, and then stash everything using --keep-index:
$ git add modified-file.txt
$ git stash push --keep-index
The commands above will stash everything, but it will leave the files staged in your working directory.
From the official Linux Kernel Git documentation for gi...
MySQL Cannot Add Foreign Key Constraint
...
mysql> create unique index index_bar_id on foos(bar_id); ... mysql> alter table foos add constraint index_bar_id foreign key (bar_id) references bars (id); sixarm.com/about/…
– CookieCoder
Dec 17 ...
How to run a shell script on a Unix console or Mac terminal?
... Then, the script is passed to the program (as second argument) along with all the arguments you gave the script as subsequent arguments.
That means every script that is executable should have a hashbang. If it doesn't, you're not telling the kernel what it is, and therefore the kernel doesn't kno...
Is there a MySQL command to convert a string to lowercase?
...of keywords that are presently mixed-case. However, I want to convert them all to lowercase. Is there an easy command to do this, either using MySQL or MySQL and PHP?
...
How to set the id attribute of a HTML element dynamically with angularjs (1.x)?
...ce, to set the id attribute value of a div element, so that it contains an index, a view fragment might contain
<div ng-attr-id="{{ 'object-' + myScopeObject.index }}"></div>
which would get interpolated to
<div id="object-1"></div>
...