大约有 1,824 项符合查询结果（耗时：0.0290秒） [XML]
bash assign default value
...xplicitly set WITH_PERL to a value other than "no" to have it built in.
$ cat defvar.sh
#!/bin/bash
WITH_PERL=${WITH_PERL:-no}
if [[ "$WITH_PERL" != no ]]; then
echo "building with perl"
# ./configure --enable=perl
else
echo "not building with perl"
# ./configure
fi
Build withou...
Android: Create spinner programmatically from array
...spinner
Spinner spinner = (Spinner) findViewById(R.id.myspinner);
// Application of the Array to the Spinner
ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, colors);
spinnerArrayAdapter.setDropDownViewResource(android.R.l...
JSON Naming Convention (snake_case, camelCase or PascalCase) [closed]
... consuming it, or for what reasons. If JSON is used as a method of communication between many producers and consumers, then the technology stack of the producer should not be a consideration.
– Robbie Wareham
May 14 '18 at 16:15
...
How to exclude file only from root folder in Git
...everal config.php files in source tree and I need to exclude only one, located in the root while other keep under revision control.
...
Centering a div block without the width
...exbox support) but this method also allows many other things, and is a dedicated CSS rule for this type of behavior:
HTML:
<div class="container">
<div class="centered">This content is centered</div>
</div>
CSS:
.container {
display: flex;
flex-direction: column; /...
Append column to pandas dataframe
...
Or pd.concat([dat1, dat2], axis=1) in this case.
– DSM
Dec 16 '13 at 3:35
...
How to use Active Support core extensions
...ps://bundler.io/blog/2019/01/04/an-update-on-the-bundler-2-release.html
$ cat Gemfile.lock | grep -A 1 "BUNDLED WITH"
BUNDLED WITH
1.17.3
$ gem install bundler -v '1.17.3'
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How do I make a redirect in PHP?
...t (so before the <!DOCTYPE ...> declaration, for example).
header('Location: '.$newURL);
2. Important details
die() or exit()
header("Location: http://example.com/myOtherPage.php");
die();
Why you should use die() or exit(): The Daily WTF
Absolute or relative URL
Since June 2014 both absolut...
How to find current transaction level?
... SET
ansi_padding SET
ansi_nulls SET
concat_null_yields_null SET
isolation level read committed
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What is the best way to concatenate two vectors?
...
AB.reserve( A.size() + B.size() ); // preallocate memory
AB.insert( AB.end(), A.begin(), A.end() );
AB.insert( AB.end(), B.begin(), B.end() );
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