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A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception pro
...ny task from tearing down the app, and logging it, via:
Task.Factory.StartNew( () =>
{
// Do your work...
}).LogExceptions();
Alternatively, you can subscribe to the TaskScheduler.UnobservedTaskException and handle it there.
...
Node.js: How to send headers with form data using request module?
...
throw new Error('undefined is not a valid uri or options object.') ^ Error: undefined is not a valid uri or options object. at request (C:\Users\pjt\node_modules\request\index.js:44:11) at Request._callback (C:\Users\pjt\r...
Using jQuery to test if an input has focus
...elow
Edit: As times change, we find better methods for testing focus, the new favorite is this gist from Ben Alman:
jQuery.expr[':'].focus = function( elem ) {
return elem === document.activeElement && ( elem.type || elem.href );
};
Quoted from Mathias Bynens here:
Note that the (e...
What are Flask Blueprints, exactly?
...tion in several places. Each time you apply it the blueprint will create a new version of its structure in the plaster of your application.
# An example
from flask import Blueprint
tree_mold = Blueprint("mold", __name__)
@tree_mold.route("/leaves")
def leaves():
return "This tree has leaves"
...
How to tell bash that the line continues on the next line
... inside quotes. In this case, without a backslash, you are simply adding a newline to the string.
$ x="foo
> bar"
$ echo "$x"
foo
bar
With a backslash, you are again splitting the logical line into multiple logical lines.
$ x="foo\
> bar"
$ echo "$x"
foobar
...
How can I dynamically create derived classes from a base class
...
This bit of code allows you to create new classes with dynamic
names and parameter names.
The parameter verification in __init__ just does not allow
unknown parameters, if you need other verifications, like
type, or that they are mandatory, just add the logic
...
How to convert ASCII code (0-255) to its corresponding character?
...
new String(new char[] { 65 })
You will end up with a string of length one, whose single character has the (ASCII) code 65. In Java chars are numeric data types.
...
Real mouse position in canvas [duplicate]
... the element itself.
Example of integration in your code:
//put this outside the event loop..
var canvas = document.getElementById("imgCanvas");
var context = canvas.getContext("2d");
function draw(evt) {
var pos = getMousePos(canvas, evt);
context.fillStyle = "#000000";
context.fill...
Check if null Boolean is true results in exception
...an can be any number of true instances, not just Boolean.TRUE. For example new Boolean(true).
– Steve Kuo
Jun 13 '12 at 1:22
...
Best Practice - NSError domains and codes for your own project/app
...hat you could do is capture the framework generated error and wrap it in a new error object that has your domain and a generic code, something like kFrameworkErrorCodeUnknown or something, and then place the captured error in the userInfo under the NSUnderlyingErrorKey. CoreData does this a lot (fo...