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How do I read the first line of a file using cat?
... I guess it reads only first lines - it opens a hundreds-megabytes file in milliseconds.
– Brian Cannard
Sep 14 '15 at 14:21
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Difference between & and && in Java? [duplicate]
... A boolean is one bit, the fact that its implementation may take up 4 or 8 bytes of memory is somewhat arbitrary.
– Jeffrey
Feb 26 '14 at 20:47
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jQuery remove all list items from an unordered list
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As noted by others, $('ul').empty() works fine, as does:
$('ul li').remove();
JS Fiddle demo.
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Testing if a checkbox is checked with jQuery
..."#id").is("checked") in a if clause you'll get true or false, not on/off, by return and you can send it to your back-end script and do whatever you want.
– Zanoldor
Feb 15 '17 at 12:33
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Where is the Keytool application?
...y file into the JDK folder ... just add your JDK
as environment variable by adding the following line
C:\Program Files\Java\jdk1.8.0_65\bin
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Git 工具 - 子模块(submodule)：一个仓库包含另一个仓库 - 开源 & Github -...
...自己的 Atom 生成代码。 你可能不得不通过 CPAN 安装或 Ruby gem 来包含共享库中的代码，或者将源代码直接拷贝到自己的项目中。 如果将这个库包含进来，那么无论用何种方式都很难定制它，部署则更加困难，因为你必须确保每一...
Add line break within tooltips
...olutions worked for me. But this one works nice.
– abby
May 2 '19 at 7:00
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proper name for python * operator?
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In Ruby and Perl 6 this has been called "splat", and I think most people from those communities will figure out what you mean if you call it that.
The Python tutorial uses the phrase "unpacking argument lists", which is long and ...
MySQL Like multiple values
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@ShayanAhmad What do you mean by beneficial? In terms of creating the query or query exection time? Isn't LIKE a lot more otpmized than REGEXP ?
– XCS
Aug 23 at 21:23
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Multiple lines of input in
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It is possible to make a text-input multi-line by giving it the word-break: break-word; attribute. (Only tested this in Chrome)
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