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Why does pattern matching in Scala not work with variables?
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What you're looking for is a stable identifier. In Scala, these must either start with an uppercase letter, or be surrounded by backticks.
Both of these would be solutions to your problem:
def mMatch(s: String) = {
val target: String = "a"
s match {
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redis-py : What's the difference between StrictRedis() and Redis()?
...ion to the changes above, the Redis class, a subclass of StrictRedis,
overrides several other commands to provide backwards compatibility with older
versions of redis-py
Do you need backwards compatibility? Use Redis. Don't care? Use StrictRedis.
2017-03-31
Here are the specifics of the backwards ...
Comment out text in R Markdown (Rmd file)
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Extra yaml blocks can be used anywhere inside the document, and commented out with #
---
title: "Untitled"
output: html_document
---
No comment.
---
# here's a comment
# ```{r}
# x = pi
# ```
---
Note however that this does not prevent knitr from evaluating inl...
No “pull” in Git Gui?
...ion under the Tools tab. Just click this and a git pull will be done.
Considering this answer: it's not because a pull can be done that it should be done
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Comparing strings by their alphabetical order
...am that demonstrates it:
class StringCompareExample {
public static void main(String args[]){
String s1 = "Project"; String s2 = "Sunject";
verboseCompare(s1, s2);
verboseCompare(s2, s1);
verboseCompare(s1, s1);
}
public static void verboseCompare(String...
How can I detect when an Android application is running in the emulator?
...lopment server automatically.) What is the best way to detect when an Android application is running in the emulator?
36 An...
How to convert a negative number to positive?
... you can use
import numpy as np
np.abs(-1.23)
>> 1.23
It will provide absolute values.
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What is the difference between Linq to XML Descendants and Elements
... the VS IntelliSense. I tried to googling the difference between them and did not get a clear answer. Which one of these have the best performance with small to medium XML files. Thanks
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Ruby combining an array into one string
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To add to what @sepp2k said: join tries #to_str first and #to_s second.
– Greg Navis
Dec 17 '16 at 11:08
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What is the format specifier for unsigned short int?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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