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Find the closest ancestor element that has a specific class
...return el;
}
The while loop waits until el has the desired class, and it sets el to el's parent every iteration so in the end, you have the ancestor with that class or null.
Here's a fiddle, if anyone wants to improve it. It won't work on old browsers (i.e. IE); see this compatibility table for c...
Difference between Destroy and Delete
...ault strategy is to do nothing (leave the foreign keys with the parent ids set), except for has_many :through, where the default strategy is delete_all (delete the join records, without running their callbacks).
The delete verbage works differently for ActiveRecord::Association.has_many and Active...
Passing an array to a query using a WHERE clause
...d a safe answer. Whoever complains it's not safe - how about a deal that I set up this particular code with the $galleries as provided in the question and you exploit it using aforementioned "sql injection vulnerability". If you cannot - you pay me USD200. How about that?
– zer...
How do I run all Python unit tests in a directory?
...
Worked flawlessly! Just set it in your test/ dir and then set the start_id = "./" . IMHO, this answer is now (Python 3.7) the accepted way!
– jjwdesign
Jun 17 '19 at 0:57
...
How to create dictionary and add key–value pairs dynamically?
...: "value1",
key2: "value2"
// etc.
};
Or use regular dot-notation to set properties after creating an object:
// empty object literal with properties added afterward
var dict = {};
dict.key1 = "value1";
dict.key2 = "value2";
// etc.
You do want the bracket notation if you've got keys that h...
jQuery UI dialog positioning
...
for anyone struggling (as i just was) with how to set more than one position it's like this: $('dialog').dialog({ position: { my: 'left top', at: 'left+50 top+50'}, });
– milpool
Oct 27 '19 at 20:40
...
Spring MVC type conversion : PropertyEditor or Converter?
...plest way is still to use custom property editor. (I tried to call 'binder.setConversionService(...)' in my @InitBinder method, but it fails, since the binder object comes with the 'global' conversion service already set. Seems like per-controller conversion classes are discouraged in Spring 3).
...
Difference between a Seq and a List in Scala
...e Collections.unmodifiableList() and similarly there are other methods for Sets, Maps etc. docs.oracle.com/javase/6/docs/api/java/util/…
– jbx
Nov 14 '13 at 16:16
27
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Symfony 2: How do I check if a user is not logged in inside a template?
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You can check if app.user is set.
{% if app.user %}
# user is logged in
{% else %}
# user is not logged in
{% endif %}
share
|
improve thi...
Can I do a partial revert in GIT
...l the reverted files in the staging area. From there, I'd perform a soft reset and add in the changes I really wanted. For an example workflow:
git revert <sha-of-bad-commit> --no-commit
git reset // This gets them out of the staging area
<edit bad file to look like it should, if necessa...