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How do I convert a Vector of bytes (u8) to a string
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To convert a slice of bytes to a string slice (assuming a UTF-8 encoding):
use std::str;
//
// pub fn from_utf8(v: &[u8]) -> Result<&str, Utf8Error>
//
// Assuming buf: &[u8]
//
fn main() {
let buf = &[0x41u8, 0x41u8, 0x42u8];
let s = match str::fro...
How can I change a file's encoding with vim?
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From the doc:
:write ++enc=utf-8 russian.txt
So you should be able to change the encoding as part of the write command.
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How do I replace NA values with zeros in an R dataframe?
...eplace = TRUE), 10)
> d <- as.data.frame(m)
V1 V2 V3 V4 V5 V6 V7 V8 V9 V10
1 4 3 NA 3 7 6 6 10 6 5
2 9 8 9 5 10 NA 2 1 7 2
3 1 1 6 3 6 NA 1 4 1 6
4 NA 4 NA 7 10 2 NA 4 1 8
5 1 2 4 NA 2 6 2 6 7 4
6 NA 3 NA NA 10 2 1 10 8 4
7 4 4 9 ...
Add object to ArrayList at specified index
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edited Sep 12 '11 at 8:15
answered Sep 12 '11 at 8:09
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Best way to generate random file names in Python
...locals~1\\temp\\tmptecp3i'
In [7]: tf = tempfile.NamedTemporaryFile()
In [8]: tf.name
Out[8]: 'c:\\blabla\\locals~1\\temp\\tmpr8vvme'
Once you have the unique filename it can be used like any regular file. Note: By default the file will be deleted when it is
closed. However, if the delete paramet...
How to test an Internet connection with bash?
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#!/bin/bash
echo -e "GET http://google.com HTTP/1.0\n\n" | nc google.com 80 > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo "Online"
else
echo "Offline"
fi
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Setting Short Value Java
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178
In Java, integer literals are of type int by default. For some other types, you may suffix the l...
What is database pooling?
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answered Oct 28 '10 at 8:39
paxdiablopaxdiablo
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Is [UIScreen mainScreen].bounds.size becoming orientation-dependent in iOS8?
I ran the following code in both iOS 7 and iOS 8:
18 Answers
18
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What is the ideal data type to use when storing latitude / longitude in a MySQL database?
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edited Mar 29 '19 at 18:17
answered Oct 1 '08 at 19:21
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