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How to Truncate a string in PHP to the word closest to a certain number of characters?
I have a code snippet written in PHP that pulls a block of text from a database and sends it out to a widget on a webpage. The original block of text can be a lengthy article or a short sentence or two; but for this widget I can't display more than, say, 200 characters. I could use substr() to cho...
Python - Passing a function into another function
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For passing both a function, and any arguments to the function:
from typing import Callable
def looper(fn: Callable, n:int, *args, **kwargs):
"""
Call a function `n` times
Parameters
----------
fn: Callable
Function to be called.
n: int
Number...
How do I convert a NSString into a std::string?
...l produce an empty C++ string
// instead of dereferencing the NULL pointer from UTF8String.
This would lead you to such a conversion:
NSString *foo = @"Foo";
std::string bar = std::string([foo UTF8String], [foo lengthOfBytesUsingEncoding:NSUTF8StringEncoding]);
...
自动生成Linux下Makefile全攻略（automake原理） - C/C++ - 清泛网 - 专注C/C++及内核技术
.../automake [OPTION] ... [Makefile]...
Generate Makefile.in for configure from Makefile.am.
Operation modes:
--help print this help, then exit
--version print version number, then exit
-v, --verbose verbosely list files processed
--no-f...
Default implementation for Object.GetHashCode()
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That documentation quote must have come from a very early version. It is no longer written like this in current MSDN articles, probably because it is quite wrong.
– Hans Passant
Jul 21 '10 at 18:43
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How to iterate over the keys and values in an object in CoffeeScript?
... Dufour in the comments. This adds a check to exclude properties inherited from the prototype, which is probably not an issue in this example but may be if you are building on top of other stuff.
share
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Express command not found
...search, I learned that one has to read every available resource especially from the parent source [in this case EXPRESSJS.COM]. Here is a quick fix.
Beginning with version 4.0+ you don't necessarily need to install express-generator if you are running Node 8.2+. Simply run
npx express-generator
...
Setting transparent images background in IrfanView
...orks for saved files but does not work when a picture is copy & pasted from the clipboard. For example, picture shown in a browser -> right click to copy image... -> open irfan -> paste. That results in black background. But I'm not sure whether it's irfan issue or the clipboard stores...
Register Application class in Manifest?
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If it derives from Application, add the fully qualified (namespace + class name) as the android:name parameter of the application element in your manifest.
<application
android:name="com.you.yourapp.ApplicationEx"
Or if the c...
RSpec: describe, context, feature, scenario?
...ribe and it (which are better suited to describing the behaviour of a test from a user's perspective, hence Mocha primarily functioning as a front end testing framework), you could:
choose to always and only use describe and it or another pairing
choose to use it inside of a context block that req...