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How to replace a set of tokens in a Java String?
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The most efficient way would be using a matcher to continually find the expressions and replace them, then append the text to a string builder:
Pattern pattern = Pattern.compile("\\[(.+?)\\]");
Matcher matcher = pattern.matcher(text);
HashMap<String,String> replacements = new...
Binding multiple events to a listener (without JQuery)?
...r for two different events on the same element. You could write your own small function to do the job, e.g.:
/* Add one or more listeners to an element
** @param {DOMElement} element - DOM element to add listeners to
** @param {string} eventNames - space separated list of event names, e.g. 'click c...
What does %s mean in a python format string?
...insert values into a
string with the %s placeholder.
Edit: Here is a really simple example:
#Python2
name = raw_input("who are you? ")
print "hello %s" % (name,)
#Python3+
name = input("who are you? ")
print("hello %s" % (name,))
The %s token allows me to insert (and potentially format) a st...
How do I get out of a screen without typing 'exit'?
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yes, you generally do have a tl;dr moment with the man command. so when you have a tl;dr when doing man command_name, in this case man screen, you can generally access a shorter & pretty helpful version of the docs by --help option, ...
See “real” commit date in github (hour/day)
...a <time> element with an iso value under its datetime attribute.
If all else fails, like it did for me, try inspecting the text.
Sample element:
<time datetime="2015-01-22T20:48:13Z" is="relative-time" title="Jan 22, 2015, 2:48 PM CST">7 days ago</time>
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Disable copy constructor
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@pauluss86 This is basically what Rust does: Move-by-default (and const-by-default). Very helpful in my opinion.
– Kapichu
Dec 31 '16 at 1:38
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How do I browse an old revision of a Subversion repository through the web view?
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Be careful with that: this is not officially supported and can change anytime with a new release. Even though it has been the same since the very beginnings of svn...
– Stefan
Mar 16 '09 at 18:01
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How can I download HTML source in C#
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basically:
using System.Net;
using System.Net.Http; // in LINQPad, also add a reference to System.Net.Http.dll
WebRequest req = HttpWebRequest.Create("http://google.com");
req.Method = "GET";
string source;
using (StreamReader...
What is the difference between up-casting and down-casting with respect to class variable
... supertype, while downcasting is casting to a subtype. Upcasting is always allowed, but downcasting involves a type check and can throw a ClassCastException.
In your case, a cast from a Dog to an Animal is an upcast, because a Dog is-a Animal. In general, you can upcast whenever there is an is-a re...
What happens with constraints when a view is removed
...hen I do something like this, I save the constraints like this for a view called view1:
self.portraitConstraints = [NSMutableArray new];
for (NSLayoutConstraint *con in self.view.constraints) {
if (con.firstItem == self.view1 || con.secondItem == self.view1) {
[self.portraitConstraints a...