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Lambda function in list comprehensions
...
The first one creates a single lambda function and calls it ten times.
The second one doesn't call the function. It creates 10 different lambda functions. It puts all of those in a list. To make it equivalent to the first you need:
[(lambda x: x*x)(x) for x in range(10)]
Or b...
Error - trustAnchors parameter must be non-empty
...
empty,
not found, or
couldn't be opened (due to access permissions for example).
See also @AdamPlumb's answer below.
To debug this issue (I wrote about it here) and understand what truststore is being used you can add the property javax.net.debug=all and then filter the logs about truststore. Y...
MySQL Workbench Dark Theme
...to see and select a theme? Besides under "Edit->Preferences-> Fonts & Colors
– edo101
May 7 at 18:54
Wait so...
How to hide output of subprocess in Python 2.7
... the same as running this shell command:
retcode = os.system("echo 'foo' &> /dev/null")
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What's the best way to bundle static resources in a Go program? [closed]
...e the string literal like this:
const html = `
<html>
<body>Example embedded HTML content.</body>
</html>
`
// Sending it:
w.Write([]byte(html)) // w is an io.Writer
Optimization tip:
Since most of the times you will only need to write the resource to an io.Writer, you ...
Stop form refreshing page on submit
... $.ajax({
type: 'post',
url: 'myPageName.php',
data: $('#myFormName').serialize(),
success: function () {
alert("Email has been sent!");
}
});
e.preventDefault();
});
})...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...set(name="analysis") {
action(type="omprog"
Binary="/usr/bin/php /path/to/script.php"
Template="msg")
stop
}
数据通过管道无缝传递给外部程序，可以说赋予了Rsyslog更多的可能性，你可以使用任何熟悉的语言来实现，以PHP为例，...
What does Ruby have that Python doesn't, and vice versa?
There is a lot of discussions of Python vs Ruby, and I all find them completely unhelpful, because they all turn around why feature X sucks in language Y, or that claim language Y doesn't have X, although in fact it does. I also know exactly why I prefer Python, but that's also subjective, and would...
Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...ill somewhat faster than sqrtss.
edit: If speed is critical, and you're really calling this in a loop for many values, you should be using the vectorized versions of these instructions, rsqrtps or sqrtps, both of which process four floats per instruction.
...
npm install from Git in a specific version
...priate <commit-ish>, such as a tag, at the end as a URL fragment.
Example, for a tag named 0.3.1:
"dependencies": {
"myprivatemodule": "git@github.com:...#0.3.1"
}
Note: The above snippet shows the base URL the same as it was posted in the question.
The snipped portion (...) shou...