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Can I initialize a C# attribute with an array or other variable number of arguments?
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179
Attributes will take an array. Though if you control the attribute, you can also use params in...
App Inventor 2 进制转换与位运算教程 - 十六进制、二进制、补码、字节操作...
...转换
二、App Inventor 2 内置的进制相关积木块
2.1 基本数字块（Basic Number Block）
2.2 基数数字块（Radix Number Block）
2.3 convert number 积木块（进制转换核心）
2.4 format as decimal 积木块
三、常用进制转换方...
Do I need a content-type header for HTTP GET requests?
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115
According to the RFC 7231 section 3.1.5.5:
A sender that generates a message containing a ...
MySQL's now() +1 day
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461
You can use:
NOW() + INTERVAL 1 DAY
If you are only interested in the date, not the date and ...
Regex to replace everything except numbers and a decimal point
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241
Use this:
document.getElementById(target).value = newVal.replace(/[^0-9.]/g, "");
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Convert columns to string in Pandas
...will convert keys to valid json (and therefore your keys to strings):
In [11]: df = pd.DataFrame([['A', 2], ['A', 4], ['B', 6]])
In [12]: df.to_json()
Out[12]: '{"0":{"0":"A","1":"A","2":"B"},"1":{"0":2,"1":4,"2":6}}'
In [13]: df[0].to_json()
Out[13]: '{"0":"A","1":"A","2":"B"}'
Note: you can p...
jQuery posting JSON
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edited Nov 9 '17 at 21:07
davidism
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Find row where values for column is maximal in a pandas DataFrame
...,columns=['A','B','C'])
>>> df
A B C
0 1.232853 -1.979459 -0.573626
1 0.140767 0.394940 1.068890
2 0.742023 1.343977 -0.579745
3 2.125299 -0.649328 -0.211692
4 -0.187253 1.908618 -1.862934
>>> df['A'].argmax()
3
>>> df['B'].argmax()
4
>...
Convert number strings with commas in pandas DataFrame to float
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136
If you're reading in from csv then you can use the thousands arg:
df.read_csv('foo.tsv', sep=...