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How to find what code is run by a button or element in Chrome using Developer Tools
...Chrome's console (although any browser with jQuery loaded will work)
Run $._data($(".example").get(0), "events")
Drill down the output to find the desired event handler.
Right-click on "handler" and select "Show function definition"
The code will be shown in the Sources tab
$._data() is just acces...
Converting string to Date and DateTime
...6-2003');
$timestamp = $d->getTimestamp(); // Unix timestamp
$formatted_date = $d->format('Y-m-d'); // 2003-10-16
Edit: you can also pass a DateTimeZone to DateTime() constructor to ensure the creation of the date for the desired time zone, not the server default one.
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Alternative to itoa() for converting integer to string C++? [duplicate]
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In C++11 you can use std::to_string:
#include <string>
std::string s = std::to_string(5);
If you're working with prior to C++11, you could use C++ streams:
#include <sstream>
int i = 5;
std::string s;
std::stringstream out;
out <<...
How to resolve “must be an instance of string, string given” prior to PHP 7?
...nly manually "type hint" scalar types:
function foo($string) {
if (!is_string($string)) {
trigger_error('No, you fool!');
return;
}
...
}
share
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How to set specific java version to Maven
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Maven uses the JAVA_HOME parameter to find which Java version it is supposed to run. I see from your comment that you can't change that in the configuration.
You can set the JAVA_HOME parameter just before you start maven (and change it back...
What does the 'b' character do in front of a string literal?
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Actually, if you've imported unicode_literals from __future__, this will "reverse" the behavior for this particular string (in Python 2.x)
– Romuald Brunet
Mar 14 '13 at 16:27
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编程基础与事件状态 06：把任务与记录保存下来 · App Inventor 2 中文网
... 实例名
组件
本课配置
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Width=Fill parent；FontSize=24；TextColor=#183153；Text=专注学习 · 第 6课
微数据库1
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Namespace=FocusA06
逐步搭建
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Make the current commit the only (initial) commit in a Git repository?
...deleting original master branch, one can rename it git branch -m master old_master and set push mode to current-branch-only git config --local push.default current. This way one can keep historical commits in separate branch and work in sync with repo in the fresh master.
– Sew...
How to Unit test with different settings in Django?
...f the latest objects. The number of objects it returns is defined by a NUM_LATEST setting.
13 Answers
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Group by multiple columns in dplyr, using string vector input
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Since this question was posted, dplyr added scoped versions of group_by (documentation here). This lets you use the same functions you would use with select, like so:
data = data.frame(
asihckhdoydkhxiydfgfTgdsx = sample(LETTERS[1:3], 100, replace=TRUE),
a30mvxigxkghc5cdsvxvyv0ja = s...