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What's better at freeing memory with PHP: unset() or $var = null
...w if one is better than the other. I have been using unset() for most of my coding, but I've recently looked through a few respectable classes found off the net that use $var = null instead.
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Immutability of Strings in Java
...can you just answer the edited part in the question please? That will make my understanding clear.
– Light_handle
Oct 12 '09 at 17:30
17
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IntelliJ IDEA jump from interface to implementing class in Java
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In my case go to implementation is typically more often what I want to see, so I swapped Ctrl-B (Navigate->Implementation(s)) and Ctrl-Alt-B (Navigate->Declaration)
– jakub.g
Jun 16 '...
What is the difference between String.slice and String.substring?
...uires a little reading into. Especially with the new terminology "stop".
My Go -- organized by differences to make it useful in addition to the first answer by Daniel above:
1) negative indexes. Substring requires positive indexes and will set a negative index to 0. Slice's negative index means...
CSS selector by inline style attribute
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@andersand: After just about enough comments on my answer I finally got around to updating it. I hadn't thought about Selenium when writing my original answer and I agree it is one of the most prominent use cases for inline style attribute selectors.
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Jackson how to transform JsonNode to ArrayNode without casting?
I am changing my JSON library from org.json to Jackson and I want to migrate the following code:
4 Answers
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How many double numbers are there between 0.0 and 1.0?
This is something that's been on my mind for years, but I never took the time to ask before.
6 Answers
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Is Zookeeper a must for Kafka?
... Storm. There are longstanding bugs I am aware of in Kafka/ZK that caused my team to abandon it in favor of RabbitMQ. Installation of HBase involves time to deal with ZK issues. However your answer related to the OP IS correct: ZK is required.
– javadba
Jan 10...
Is it possible to adjust x,y position for titleLabel of UIButton?
...bably easier to accomplish by using the interface builder (as described in my answer).
– eladleb
Apr 1 '13 at 7:23
The...
how to hide a vertical scroll bar when not needed
...if overflow is auto psuedo elements arent working.... I want to customize my scrollbar as well as hide then when not needed ?
– Kpatel1989
Apr 27 '15 at 8:37
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