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Real World Example of the Strategy Pattern
...arameter, the concrete strategy will be tagged to interface.
UML Diagram from wikipedia
One real word example : Airlines offering discounts during some months (July-December). You can have one Fare module, which decides pricing options depending on month number.
Have a look at a simple examp...
What is a Lambda?
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Clipped from wikipedia: http://en.wikipedia.org/wiki/Lambda#Lambda.2C_the_word
In programming languages such as Lisp and Python, lambda is an operator used to denote anonymous functions or closures, following lambda calculus usage.
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Git On Custom SSH Port
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When you want a relative path from your home directory (on any UNIX) you use this strange syntax:
ssh://[user@]host.xz[:port]/~[user]/path/to/repo
For Example, if the repo is in /home/jack/projects/jillweb on the server jill.com and you are logging in a...
How to use a custom comparison function in Python 3?
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A complete python3 cmp_to_key lambda example:
from functools import cmp_to_key
nums = [28, 50, 17, 12, 121]
nums.sort(key=cmp_to_key(lambda x, y: 1 if str(x)+str(y) < str(y)+str(x) else -1))
compare to common object sorting:
class NumStr:
def __init__(self, v)...
Formatting a number with exactly two decimals in JavaScript
...ath.pow(10, decimals)) / Math.pow(10, decimals);
}
And its two comments (from @bighostkim and @Imre):
Problem with precise_round(1.275,2) not returning 1.28
Problem with precise_round(6,2) not returning 6.00 (as he wanted).
My final solution is as follows:
function precise_round(num,decimals)...
Retina displays, high-res background images
...;
}
}
As @3rror404 included in his edit after receiving feedback from the comments, there's a world beyond Webkit/iPhone. One thing that bugs me with most solutions around so far like the one referenced as source above at CSS-Tricks, is that this isn't taken fully into account.
The origina...
YAML Multi-Line Arrays
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Following Works for me and its good from readability point of view when array element values are small:
key: [string1, string2, string3, string4, string5, string6]
Note:snakeyaml implementation used
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Full Page
...like it's taking away the responsiveness (i.e. collapsing of columns, etc) from the content within the iframe. But somehow only when opening the page with mobile safari, not when resizing a desktop browser. Any ideas what could cause that behaviour?
– psteinweber
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new DateTime() vs default(DateTime)
...erless constructors for structs, which allow the behavior of new to differ from what default(T) will do.
– vcsjones
Feb 27 '15 at 15:45
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Recommended way to stop a Gradle build
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I usually throw the relevant exception from the org.gradle.api package, for example InvalidUserDataException for when someone has entered something invalid, or GradleScriptException for more general errors.
If you want to stop the current task or action, and move...