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Javascript regex returning true.. then false.. then true.. etc [duplicate]
I have a strange problem with the validation I am writing on a form. It is a 'Check Username' button next to an input. The input default value is the username for example 'betamax'. When I press 'Check Username' it passes the regex and sends the username to the server. The server behaves as expected...
What does |= (ior) do in Python?
Google won't let me search |= so I'm having trouble finding relevant documentation. Anybody know?
8 Answers
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How do I get Month and Date of JavaScript in 2 digit format?
When we call getMonth() and getDate() on date object, we will get the single digit number .
For example :
28 Answers...
How to install a previous exact version of a NPM package?
I used nvm to download node v0.4.10 and installed npm to work with that version of node.
10 Answers
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How to calculate cumulative normal distribution?
I am looking for a function in Numpy or Scipy (or any rigorous Python library) that will give me the cumulative normal distribution function in Python.
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How to test multiple variables against a value?
I'm trying to make a function that will compare multiple variables to an integer and output a string of three letters. I was wondering if there was a way to translate this into Python. So say:
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ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
ATL正则表达式库使用ATL中，由于ATL Server的需要，需要对Client发送过来的地址、命令等复杂文字字段信息解码，而正则表达式是公认的最强大的文字解析工具，所...ATL中，由于ATL Server的需要，需要对Client发送过来的地址、命令等...
Returning an array using C
I am relatively new to C and I need some help with methods dealing with arrays. Coming from Java programming, I am used to being able to say int [] method() in order to return an array. However, I have found out that with C you have to use pointers for arrays when you return them. Being a new progr...
Shading a kernel density plot between two points.
I frequently use kernel density plots to illustrate distributions. These are easy and fast to create in R like so:
5 Answer...
Rename specific column(s) in pandas
I've got a dataframe called data . How would I rename the only one column header? For example gdp to log(gdp) ?
5 Answe...