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How to search a string in multiple files and return the names of files in Powershell?
... large operations like that. It becomes very convoluted when you try to do all of that on one line and it is very easy to make a large mistake. I speak from experience
– Kolob Canyon
Sep 6 '18 at 15:44
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java.util.regex - importance of Pattern.compile()?
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The compile() method is always called at some point; it's the only way to create a Pattern object. So the question is really, why should you call it explicitly? One reason is that you need a reference to the Matcher object so you can use its methods, like...
How to detect if a function is called as constructor?
...oking at the ECMAScript 3rd edition spec, the steps taken when new x() is called are essentially:
Create a new object
Assign its internal [[Prototype]] property to the prototype property of x
Call x as normal, passing it the new object as this
If the call to x returned an object, return it, otherw...
How do you split and unsplit a window/view in Eclipse IDE?
...tcut for splitting is:
Azerty keyboard:
Ctrl + _ for split horizontally, and
Ctrl + { for split vertically.
Qwerty US keyboard:
Ctrl + Shift + - (accessing _) for split horizontally, and
Ctrl + Shift + [ (accessing {) for split vertically.
MacOS - Qwerty US keyboard:
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Converting datetime.date to UTC timestamp in Python
...le (e.g., via tzlocal.get_localzone()) to get access to the tz database on all platforms. Also, utcfromtimestamp() may fail and mktime() may return non-POSIX timestamp if "right" timezone is used.
To convert datetime.date object that represents date in UTC without calendar.timegm():
DAY = 24*60*...
How to run code when a class is subclassed? [duplicate]
...- Watcher subclasses type, not object. 2 - SuperClass has no superclass at all, not object. I'm just so used to writing down object as a superclass for every class I defined that I somehow missed it that this code was using something else. Although there doesn't seem to be any harm in making SuperCl...
jQuery selector regular expressions
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James Padolsey created a wonderful filter that allows regex to be used for selection.
Say you have the following div:
<div class="asdf">
Padolsey's :regex filter can select it like so:
$("div:regex(class, .*sd.*)")
Also, check the official documentation on se...
ObjectiveC Parse Integer from String
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NSArray *_returnedArguments = [serverOutput componentsSeparatedByString:@":"];
_returnedArguments is an array of NSStrings which the UITextField text property is expecting. No need to convert.
Syntax error:
[_appDelegate loggedIn...
Windbg Step 2 分析程序堆栈实战 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...http: www.cnblogs.com killmyday#include"stdafx.h"#include<tchar.h>#ifdef_UNICODE#define_ttol_wtol#else#define_ttolatol#e...转载+整理 http://www.cnblogs.com/killmyday
#include "stdafx.h"
#include <tchar.h>
#ifdef _UNICODE
#define _ttol _wtol
#else
#define _ttol atol
#endif
voi...
How to execute a raw update sql with dynamic binding in rails
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It doesn't look like the Rails API exposes methods to do this generically. You could try accessing the underlying connection and using it's methods, e.g. for MySQL:
st = ActiveRecord::Base.connection.raw_connection.prepare("update table set f1=? where f2=? and f3=?")
st.execute(f1, f2, f3)
st...