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Named capturing groups in JavaScript regex?
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ECMAScript 2018 introduces named capturing groups into JavaScript regexes.
Example:
const auth = 'Bearer AUTHORIZATION_TOKEN'
const { groups: { token } } = /Bearer (?<token>[^ $]*)/.exec(auth)
console.log(token) // "Prints...
Unable to understand useCapture parameter in addEventListener
....log(1)}, false);
window.addEventListener("click", function(){console.log(2)}, true);
window.addEventListener("click", function(){console.log(3)}, false);
window.addEventListener("click", function(){console.log(4)}, true);
The log messages will appear in this order:
2 (defined first, usi...
In log4j, does checking isDebugEnabled before logging improve performance?
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252
In this particular case, Option 1 is better.
The guard statement (checking isDebugEnabled()) ...
How should I use try-with-resources with JDBC?
...d for the outer try in your example, so you can at least go down from 3 to 2, and also you don't need closing ; at the end of the resource list. The advantage of using two try blocks is that all of your code is present up front so you don't have to refer to a separate method:
public List<User>...
How do you keep parents of floated elements from collapsing? [duplicate]
...float: left;">Div 1</div>
<div style="float: left;">Div 2</div>
</div>
CSS:
.clearfix::after {
content: " ";
display: block;
height: 0;
clear: both;
}
With a little CSS targeting, you don't even need to add a class to the parent DIV.
This so...
Is it safe to resolve a promise multiple times?
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120
As I understand promises at present, this should be 100% fine. Only thing to understand is that...
When does invoking a member function on a null instance result in undefined behavior?
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2 Answers
2
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Python unittests in Jenkins?
...ample tests:
tests.py:
# tests.py
import random
try:
import unittest2 as unittest
except ImportError:
import unittest
class SimpleTest(unittest.TestCase):
@unittest.skip("demonstrating skipping")
def test_skipped(self):
self.fail("shouldn't happen")
def test_pass(sel...
SELECT * FROM X WHERE id IN (…) with Dapper ORM
...ble WHERE id IN @ids"
var results = conn.Query(sql, new { ids = new[] { 1, 2, 3, 4, 5 }});
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minimize app to system tray
I have a Windows forms app powered by C# and Visual Studio 2010.
9 Answers
9
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