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String formatting in Python 3
...ing a single argument twice (as @Burhan Khalid noted in the comments):
"({0.goals} goals, ${0.penalties})".format(self)
Explaining:
{} means just the next positional argument, with default format;
{0} means the argument with index 0, with default format;
{:d} is the next positional argument, wi...
Use find command but exclude files in two directories
... it happy.
– peelman
Nov 12 '13 at 20:08
3
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How to set current working directory to the directory of the script in bash?
...
#!/bin/bash
cd "$(dirname "$0")"
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How to deal with floating point number precision in JavaScript?
...st irritated that their programs don't work correctly with numbers like 1/10 without realizing that they wouldn't even blink at the same error if it occurred with 1/3.
If the first point really applies to you, use BigDecimal for JavaScript, which is not elegant at all, but actually solves the probl...
C# Double - ToString() formatting with two decimal places but no rounding
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210
I use the following:
double x = Math.Truncate(myDoubleValue * 100) / 100;
For instance:
If t...
What does upstream mean in nginx?
...x.org/LoadBalanceExample is:
http {
upstream myproject {
server 127.0.0.1:8000 weight=3;
server 127.0.0.1:8001;
server 127.0.0.1:8002;
server 127.0.0.1:8003;
}
server {
listen 80;
server_name www.domain.com;
location / {
proxy_pass http://myproject;
...
List of encodings that Node.js supports
...16le/utf-16le
utf8/utf-8
binary/latin1 (ISO8859-1, latin1 only in node 6.4.0+)
If you are using an older version than 6.4.0, or don't want to deal with non-Unicode encodings, you can recode the string:
Use iconv-lite to recode files:
var iconvlite = require('iconv-lite');
var fs = require('fs');...
How to normalize an array in NumPy?
...mpy as np
from sklearn.preprocessing import normalize
x = np.random.rand(1000)*10
norm1 = x / np.linalg.norm(x)
norm2 = normalize(x[:,np.newaxis], axis=0).ravel()
print np.all(norm1 == norm2)
# True
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App Inventor 2 上传文件和图片到服务器教程 · App Inventor 2 中文网
...1.GotText(响应代码, 响应类型, 响应内容) {
if 响应代码 = 200 {
标签_状态.Text = join("上传成功！服务器返回：", 响应内容)
} else {
标签_状态.Text = join("上传失败，错误码：", 响应代码)
}
}
when Web客户端1.ErrorOccurred(错误信息)...
Why do some C# lambda expressions compile to static methods?
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Action<string> withClosure = s => Console.WriteLine("My name is {0} and I am {1} years old", s, age);
Action<string> withoutClosure = s => Console.WriteLine("My name is {0}", s);
Console.WriteLine(withClosure.Method.IsStatic);
Console.WriteLine(withoutClosure.Method.IsStatic);
T...