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Fastest way to check if a string matches a regexp in ruby?
...y
require 'benchmark'
str = "aacaabc"
re = Regexp.new('a+b').freeze
N = 4_000_000
Benchmark.bm do |b|
b.report("str.match re\t") { N.times { str.match re } }
b.report("str =~ re\t") { N.times { str =~ re } }
b.report("str[re] \t") { N.times { str[re] } }
b.report("re =~ str...
Registry Key '…' has value '1.7', but '1.6' is required. Java 1.7 is Installed and the Registry is P
...re). The rest of the JDK and JRE where found in the PATH inside C:\Java\jdk_1.7.0\bin. Oops!
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Iterate over a list of files with spaces
...arr[@]}
do
newname=`echo "${arr[$i]}" | sed 's/stupid/smarter/; s/ */_/g'`;
mv "${arr[$i]}" "$newname"
done
${!arr[@]} expands to 0 1 2 so "${arr[$i]}" is the ith element of the array. The quotes around the variables are important to preserve the spaces.
The result is three renamed fi...
Best way to resolve file path too long exception
...cussed in the following paragraphs), the maximum length
for a path is MAX_PATH, which is defined as 260 characters. A local
path is structured in the following order: drive letter, colon,
backslash, name components separated by backslashes, and a terminating
null character. For example, the ...
Replace multiple strings with multiple other strings
...d a %3";
let pets = ["dog","cat", "goat"];
then
str.replace(/%(\d+)/g, (_, n) => pets[+n-1])
How it works:-
%\d+ finds the numbers which come after a %. The brackets capture the number.
This number (as a string) is the 2nd parameter, n, to the lambda function.
The +n-1 converts the string ...
Downloading a file from spring controllers
...
@RequestMapping(value = "/files/{file_name}", method = RequestMethod.GET)
public void getFile(
@PathVariable("file_name") String fileName,
HttpServletResponse response) {
try {
// get your file as InputStream
InputStream is = ...;
...
Append a Lists Contents to another List C#
...
Here is my example:
private List<int> m_machinePorts = new List<int>();
public List<int> machinePorts
{
get { return m_machinePorts; }
}
Init()
{
// Custom function to get available ethernet ports
List<i...
How can I get Express to output nicely formatted HTML?
...y with the 'ugly' in production. Make sure to set environment variable NODE_ENV=production when you're deploying in production. This can be done with an sh script you use in the 'script' field of package.json and executed to start.
Express 3 changed this because:
The "view options" setting is n...
Showing the stack trace from a running Python application
...ess, and provide a python prompt for
interactive debugging."""
d={'_frame':frame} # Allow access to frame object.
d.update(frame.f_globals) # Unless shadowed by global
d.update(frame.f_locals)
i = code.InteractiveConsole(d)
message = "Signal received : entering pyt...
Modify tick label text
...itioned and
# won't have values yet.
fig.canvas.draw()
labels = [item.get_text() for item in ax.get_xticklabels()]
labels[1] = 'Testing'
ax.set_xticklabels(labels)
plt.show()
To understand the reason why you need to jump through so many hoops, you need to understand a bit more about how matp...