大约有 32,000 项符合查询结果（耗时：0.0342秒） [XML]
Why are floating point numbers inaccurate?
...ted a lot like scientific notation: with an exponent and a mantissa (also called the significand). A very simple number, say 9.2, is actually this fraction:
5179139571476070 * 2 -49
Where the exponent is -49 and the mantissa is 5179139571476070. The reason it is impossible to represent some de...
What is the difference between server side cookie and client side cookie?
...rence between creating cookies on the server and on the client? Are these called server side cookies and client side cookies? Is there a way to create cookies that can only be read on the server or on the client?
...
Unmangling the result of std::type_info::name
...
Given the attention this question / answer receives, and the valuable feedback from GManNickG, I have cleaned up the code a little bit. Two versions are given: one with C++11 features and another one with only C++98 features.
In file type.hpp
#if...
What is the difference between location list and quickfix list in vim
The following is from the documentation about the quickfix list and location list. But I am not sure what actually different. The image below shows the same things from the location list and quickfix list. When do I use one or another in vimgrep and lvimgrep.
...
JavaScript hashmap equivalent
...
Hash your objects yourself manually, and use the resulting strings as keys for a regular JavaScript dictionary. After all, you are in the best position to know what makes your objects unique. That's what I do.
Example:
var key = function(obj){
// Some un...
Capturing Ctrl-c in ruby
...is the correct exit code for Ctrl-C interrupted scripts: google.com/search?q=130+exit+code&en= (130 | Script terminated by Control-C | Ctl-C | Control-C is fatal error signal 2, (130 = 128 + 2, see above))
– Dorian
Apr 17 '17 at 23:28
...
Is there a command for formatting HTML in the Atom editor?
...necessary. ie, Atom can be used for developing non-web apps, which don't require those formatters...
– ljs.dev
Apr 27 '15 at 20:36
7
...
How to detect if my shell script is running through a pipe?
... don't work
In trying to solve this problem, I've looked at several techniques that fail to solve the problem, including ones that involve:
examining SSH environment variables
using stat on /dev/stdin file descriptors
examining interactive mode via [[ "${-}" =~ 'i' ]]
examining tty status via tty...
I want to execute shell commands from Maven's pom.xml
...a while to find this simple syntactical mistake. Maven's error output is really not that helpful.
– joergl
Aug 29 '16 at 8:23
1
...
How to use Elasticsearch with MongoDB?
... instance.
Make sure everything is up to date.
sudo apt-get update
Install NodeJS.
sudo apt-get install nodejs
sudo apt-get install npm
Install MongoDB - These steps are straight from MongoDB docs.
Choose whatever version you're comfortable with. I'm sticking with v2.4.9 because it seems to b...