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Count occurrences of a char in plain text file
...
How about this:
fgrep -o f <file> | wc -l
Note: Besides much easier to remember/duplicate and customize, this is about three times (sorry, edit! botched the first test) faster than Vereb's answer.
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git-checkout older revision of a file under a new name
...(Note that there is colon [:] character between HEAD^ and main.cpp.) The <revision>:<path> syntax is described in git rev-parse manpage, next to last point in the "Specifying revisions" section:
<rev>:<path>, e.g. HEAD:README, :README, master:./README
A suff...
Is there something like Annotation Inheritance in java?
...ehicleAnnotation != null;
This method is implemented as:
public static <A extends Annotation> A findAnnotation(Class<?> clazz, Class<A> annotationType) {
return findAnnotation(clazz, annotationType, new HashSet<Annotation>());
}
@SuppressWarnings("unchecked")
private ...
contenteditable, set caret at the end of the text (cross-browser)
...cument.querySelector('p') );
p{ padding:.5em; border:1px solid black; }
<p contentEditable>foo bar </p>
Placing the caret at the start is almost identical: it just requires changing the Boolean passed into the calls to collapse(). Here's an example that creates functions for pla...
Check if a value is within a range of numbers
...r expressions really have nothing to do with the issue. You don't need "multiple if" statements to do it, either:
if (x >= 0.001 && x <= 0.009) {
// something
}
You could write yourself a "between()" function:
function between(x, min, max) {
return x >= min && x <...
C Macro definition to determine big endian or little endian machine?
...o a file called order32.h:
#ifndef ORDER32_H
#define ORDER32_H
#include <limits.h>
#include <stdint.h>
#if CHAR_BIT != 8
#error "unsupported char size"
#endif
enum
{
O32_LITTLE_ENDIAN = 0x03020100ul,
O32_BIG_ENDIAN = 0x00010203ul,
O32_PDP_ENDIAN = 0x01000302ul, /* DE...
Where is the IIS Express configuration / metabase file found?
...2015+ you can also configure which applicationhost.config file is used by altering the <UseGlobalApplicationHostFile>true|false</UseGlobalApplicationHostFile> setting in the project file (eg: MyProject.csproj). (source: MSDN forum)
...
Hidden Features of Xcode 4
...good as it runs, you've undoubtedly used #pragma mark - and #pragma mark <name> to provide a nice visual grouping in the Xcode class dropdown list. Xcode 4 now combines these into a single #pragma mark - <name>.
More on pragma mark.
...
Can a decorator of an instance method access the class?
...orator
... def hello(self, x=42):
... return x
...
decorating <function A.hello at 0x7f9bedf66bf8> and using <class '__main__.A'>
>>> A.hello
<function __main__.A.hello(self, x=42)>
>>> A.hello.class_name
'A'
>>> a = A()
>>> a.hello()...
How to set DOM element as the first child?
...e is the sibling methods:
element.insertAdjacentHTML('afterbegin','htmlText') for inject html string directly, like innerHTML but without overide everything , so you can jump oppressive process of document.createElement and even build whole componet with string manipulation process
element.ins...