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How can I install a local gem?
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I can confirm from the future of 2020, the link works for me. In case it doesn't work in the distant future, here's the Archive.org April 19th, 2020 snapshot
– Jed Burke
May 30 at 10:23
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How to convert an iterator to a stream?
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One way is to create a Spliterator from the Iterator and use that as a basis for your stream:
Iterator<String> sourceIterator = Arrays.asList("A", "B", "C").iterator();
Stream<String> targetStream = StreamSupport.stream(
Spliterators.spli...
Is it possible to reference one CSS rule within another?
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No, you cannot reference one rule-set from another.
You can, however, reuse selectors on multiple rule-sets within a stylesheet and use multiple selectors on a single rule-set (by separating them with a comma).
.opacity, .someDiv {
filter:alpha(opacity=60)...
How do I set the proxy to be used by the JVM
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From the Java documentation (not the javadoc API):
http://download.oracle.com/javase/6/docs/technotes/guides/net/proxies.html
Set the JVM flags http.proxyHost and http.proxyPort when starting your JVM on the command line.
T...
What does asterisk * mean in Python? [duplicate]
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It separates regular parameters from keyword-only parameters. From the doc index page for '*': docs.python.org/dev/reference/compound_stmts.html#index-22
– Éric Araujo
Oct 30 '15 at 23:40
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Random String Generator Returning Same String [duplicate]
...class are NOT documented as being thread-safe, so if this method is called from multiple threads at the same time (highly likely if you're making a web app, for example) then the behaviour of this code will be undefined. You either need to use a lock on the random or make it per-thread.
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How can I refresh a page with jQuery?
...tion takes an optional parameter that can be set to true to force a reload from the server rather than the cache. The parameter defaults to false, so by default the page may reload from the browser's cache.
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How to remove the last character from a string?
I want to remove the last character from a string. I've tried doing this:
32 Answers
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Why does appending “” to a String save memory?
...o.
EDIT: To answer your supplementary question, constructing a new String from the substring will reduce your memory consumption, provided you bin any references to the original String.
NOTE (Jan 2013). The above behaviour has changed in Java 7u6. The flyweight pattern is no longer used and substr...
Internet Explorer 9 not rendering table cells properly
...remove the space inbetween td by using javascript if your html is returned from ajax, then from the response, you replace it with
response_html = response_html.replace(/td>\s+<td/g,'td><td');
$('#table').html(response_html);
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