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Super-simple example of C# observer/observable with delegates
...re's an example:
using System;
class Observable
{
public event EventHandler SomethingHappened;
public void DoSomething() =>
SomethingHappened?.Invoke(this, EventArgs.Empty);
}
class Observer
{
public void HandleEvent(object sender, EventArgs args)
{
Console.Wri...
Loaded nib but the 'view' outlet was not set
I added a new nib file to my project, and tried to load it.
32 Answers
32
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How do you Programmatically Download a Webpage in Java
I would like to be able to fetch a web page's html and save it to a String , so I can do some processing on it. Also, how could I handle various types of compression.
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Position geom_text on dodged barplot
...om_text on dodged or stacked bars (the code chunk named "# Aligning labels and bars"). The Q&A What is the width argument in position_dodge? provides a more thorough description of the topic.
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Get user info via Google API
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Add this to the scope - https://www.googleapis.com/auth/userinfo.profile
And after authorization is done, get the information from - https://www.googleapis.com/oauth2/v1/userinfo?alt=json
It has loads of stuff - including name, public profile url, gender, photo etc.
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Real life trading API [closed]
...ems -- see this.
Also, this is something that the exchange has to support and your broker has to allow. Most exchanges I know of, do not allow automated trading without prior permission.
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How to change color of SVG image using CSS (jQuery SVG image replacement)?
This is a self Q&A of a handy piece of code I came up with.
17 Answers
17
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Does a dot have to be escaped in a character class (square brackets) of a regular expression?
...r except ^, -, ] or \ is a literal.
This website is a brilliant reference and has lots of info on the nuances of different regex flavours.
http://www.regular-expressions.info/refcharclass.html
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How to convert string to boolean php
...ue'? true: false;
EDIT: the above code is intended for clarity of understanding. In actual use the following code may be more appropriate:
$test_mode_mail = ($string === 'true');
or maybe use of the filter_var function may cover more boolean values:
filter_var($string, FILTER_VALIDATE_BOOLEA...
How to delete a cookie?
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how do i set a function that and check what is my cookies and whether it expire yet?
– kennedy
Jan 27 '10 at 3:53
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