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ruby on rails f.select options with custom attributes
...at you want:
(1) Using a custom attribute name in HTML5. In HTML5 you are allowed to have custom attribute names, but they have to be pre-pended with 'data-'. These custom attributes will not get submitted with your form, but they can be used to access your elements in Javascript. If you want to ac...
Possible heap pollution via varargs parameter
...hrow a CCE
B b = listOfBs.get(0);
@SafeVarargs does not prevent this at all. However, there are methods which provably will not pollute the heap, the compiler just can't prove it. Previously, callers of such APIs would get annoying warnings that were completely pointless but had to be suppressed ...
In a django model custom save() method, how should you identify a new object?
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Not all models have an id attribute, i.e. a model extending another through a models.OneToOneField(OtherModel, primary_key=True). I think you need to use self.pk
– AJP
Apr 9 '13 at 10:21
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Android and in TextView
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In Kotlin, it works very well. I replace all the empty spaces with this, and it will ellipsize from the last characters. str.replace(" ", "\u00A0") yields, "Hello wor..." instead of "Hello..."
– Seop Yoon
Feb 23 '18 at 2:27
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Difference between git pull and git pull --rebase
...t saying git pull --rebase is the same as git fetch and git rebase is basically how it is, but it's not exactly semantically equivalent. There are some differences, some of which are explained here. gitolite.com/git-pull--rebase
– w0rp
Aug 20 '15 at 9:47
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How do I remove the passphrase for the SSH key without having to create a new key?
...ch can be left blank to have no passphrase).
If you would like to do it all on one line without prompts do:
$ ssh-keygen -p [-P old_passphrase] [-N new_passphrase] [-f keyfile]
Important: Beware that when executing commands they will typically be logged in your ~/.bash_history file (or similar...
Determine project root from a running node.js application
...uire.main === module
Because module provides a filename property (normally equivalent to __filename), the entry point of the current application can be obtained by checking require.main.filename.
So if you want the base directory for your app, you can do:
var path = require('path');
var appD...
In AngularJS, what's the difference between ng-pristine and ng-dirty?
... to roll your own solution (some pretty good ones can be found here). Basically, this means iterating over all form fields and setting their $dirty flag to false.
Hope this helps.
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Can you explain the HttpURLConnection connection process?
...how to use HTTPURLConnection but I want to understand how it works. Basically, I want to know the following:
5 Answers
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Declaration of Methods should be Compatible with Parent Methods in PHP
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I believe visibility is actually a different error. By the way, at my shop we don't use strict mode, because of this (we use E_ALL, IIRC).
– davidtbernal
Jun 25 '10 at 7:01
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