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Check if file exists but prevent 404 error in console from showing up [duplicate]
... into console, so looks like throw is somewhere in native implementations, and only catch of re-thrown error is possible. Or maybe error is thrown after logging. Anyway, couldn't find solution to that neither.
– yoosiba
May 7 '12 at 14:54
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List all virtualenv
... is the default one, it searches for any hook you may have around this command and executes it, which takes more time.
"brief" just take the virtualenvs names and prints it.
brief usage:
$ lsvirtualenv -b
long usage:
$ lsvirtualenv -l
if you don't have any hooks, or don't even know what i'm...
Event for Handling the Focus of the EditText
...n top of class:
EditText myEditText;
Find EditText in onCreate Function and setOnFocusChangeListener of EditText:
myEditText = findViewById(R.id.yourEditTextNameInxml);
myEditText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusC...
Backbone.js: How to get the index of a model in a Backbone Collection?
...
yes, backbone provides access to many underscore.js methods on models and collections, including an indexOf method on collections. it also provides an at method like you've shown.
var index = this.collection.indexOf(this.model);
var modelAbove = this.collection.at(index-1);
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How do I set up curl to permanently use a proxy? [closed]
... answered Sep 26 '11 at 17:54
Sandro MundaSandro Munda
34.9k2121 gold badges9191 silver badges116116 bronze badges
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How can I convert an image to grayscale via the command line? [closed]
...n I use sips , imagemagic , or another tool to convert an image to black and white (grayscale) via the command line?
2 A...
Is there a Sleep/Pause/Wait function in JavaScript? [duplicate]
...n in PHP — a function that pauses code execution for x milliseconds, and then resumes where it left off?
3 Answers
...
Emacs Ruby autocomplete almost working
...e: Apparently the outer (rails-project:root) is expensive, so calling once and caching the value seems like a good idea.)
Unfortunately, if there is code inside the body that has a side effect meant intentionally to change the value that (rails-project:root) returns, it's going to have no effect. ...
Is local static variable initialization thread-safe in C++11? [duplicate]
...sked question, but as there are so many variants, I'd like to re-state it, and hopefully have an answer reflecting the current state. Something like
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How can I check ModelState.IsValid from inside my Razor view [duplicate]
... I also used this to display a specific error in the validation summary, and it worked. @if (ViewData.ModelState.Keys.Any(x => x == "ErrorKeyName")) { @Html.ValidationSummary(true, "") }
– N0rA
Feb 24 '14 at 9:39
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