大约有 6,700 项符合查询结果（耗时：0.0218秒） [XML]
Using bitwise OR 0 to floor a number
...loor? Maybe it's a bit
faster? (pun not intended)
http://jsperf.com/or-vs-floor/2 seems slightly faster
Does it have any disadvantages? Maybe it doesn't work in some cases?
Clarity is an obvious one, since we had to figure it out, and well,
I'm writting this question.
Will not pass js...
What is the difference between persist() and merge() in JPA and Hibernate?
...e list of states and 2 sub-sections for each different behavior of persist vs merge?
– AlikElzin-kilaka
Mar 6 '17 at 13:30
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In Intellij, how do I toggle between camel case and underscore spaced?
At my company we have two different style guides for java vs sql. In java I have a field named historyOfPresentIllness and when i write the sql, I want to name it history_of_present_illness . Is there a keyboard shortcut to switch from one to the other when I have the phrase highlighted? Or pe...
ggplot with 2 y axes on each side and different scales
...ctional) data set dt: for five days, it tracks the number of interruptions VS productivity:
when numinter prod
1 2018-03-20 1 0.95
2 2018-03-21 5 0.50
3 2018-03-23 4 0.70
4 2018-03-24 3 0.75
5 2018-03-25 4 0.60
(the ranges of both columns differ by about...
Why is Lisp used for AI? [closed]
...ot powerful/cheap enough) AND because such harsh contrast between symbolic vs sub-symbolic camps precluded any synergy. W.r.t. "even widely used/liked today": I suspect that some of the techniques developed in AI (in both camps) are much more in use than one can think (no more hyped, fortunately).
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Git - working on wrong branch - how to copy changes to existing topic branch
...trick using a temporary branch to work:
This scenario works at least with VS 2015 Git plugin but would most likely work with any git tool.
checkout and make changes to files in master (ups!, wrong branch)
create a new branch "temp" (or any unused name you choose) from master. Checked out files wi...
Adding custom radio buttons in android
...nk the only way to do that is apply the drawable to the android:background vs the android:button; then declaring the android:button as transparent. This way the text can sit inside the button.
– Evan Bashir
Oct 3 '13 at 16:17
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Why the switch statement cannot be applied on strings?
...u code is possible with compiler support for initializer lists which means VS 2013 plus. gcc 4.8.1 was ok with it, not sure how much farther back it would be compatible.
/// <summary>
/// Enum for String values we want to switch on
/// </summary>
enum class TestType
{
SetType,
G...
Creation timestamp and last update timestamp with Hibernate and MySQL
...ry hibernate event listeners, although that's not very elegant and compact vs JPA annotations.
– Shailendra
Oct 9 '13 at 10:16
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BigDecimal - to use new or valueOf
...ntiate a new value, even if not necessary (best example: new Boolean(true) vs. Boolean.valueOf(true)).
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