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Lodash - difference between .extend() / .assign() and .merge()
...t level
Only _.assign and _.extend will overwrite a value with undefined
Tests
They all handle members at the root in similar ways.
_.assign ({}, { a: 'a' }, { a: 'bb' }) // => { a: "bb" }
_.merge ({}, { a: 'a' }, { a: 'bb' }) // => { a: "bb" }
_.defaults ({}, { a: 'a' }, { a...
A regex to match a substring that isn't followed by a certain other substring
...
Try:
/(?!.*bar)(?=.*foo)^(\w+)$/
Tests:
blahfooblah # pass
blahfooblahbarfail # fail
somethingfoo # pass
shouldbarfooshouldfail # fail
barfoofail # fail
Regular expression explanation
NODE EXPLANAT...
How to do stateless (session-less) & cookie-less authentication?
...e very little time to execute, even with multiple simultaneous users. Load testing here would definitely help though. If I read the question correctly, this would be your encrypted token mechanism - although, I would strongly suggest that you use a cryptographically random token of say 32 characters...
Why are these numbers not equal?
...?all.equal
#....
#all.equal(x,y) is a utility to compare R objects x and y testing ‘near equality’.
#....
#all.equal(target, current,
# tolerance = .Machine$double.eps ^ 0.5,
# scale = NULL, check.attributes = TRUE, ...)
#....
So the all.equal function is actually checking that the d...
?: operator (the 'Elvis operator') in PHP
...... That's why PHP 7 will get the Null Coalesce operator, It will strictly test your variable against null, so PHP will says that 0 is not undefined.
– Gregoire D.
Apr 20 '16 at 10:01
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Does a finally block run even if you throw a new Exception?
...
Finally, block always executes.
public class ExceptionTest {
public static void someFunction(String input) throws Exception {
try {
if( input.equals("ABC") ) {
System.out.println("Matched");
}
} catch (Exception e) {
throw new Excepti...
The bare minimum needed to write a MSMQ sample application
... and even one full chapter of a book about Message Queue...But for a quick test all I need is to cover is this scenario, not even in a perfect way, just for a quick demo:
...
How to scale down a range of numbers with a known min and max value
...mitMin) * (valueIn - baseMin) / (baseMax - baseMin)) + limitMin;
}
}
Tester:
final double baseMin = 0.0;
final double baseMax = 360.0;
final double limitMin = 90.0;
final double limitMax = 270.0;
double valueIn = 0;
System.out.println(Algorithms.scale(valueIn, baseMin, baseMax, limitMin, limi...
How to check task status in Celery?
...nning, you must set task_track_started to True. Here is a simple task that tests this:
@app.task(bind=True)
def test(self):
print self.AsyncResult(self.request.id).state
When task_track_started is False, which is the default, the state show is PENDING even though the task has started. If you ...
Is a RelativeLayout more expensive than a LinearLayout?
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since the latest version it became very very slow
– Dragos Rachieru
Apr 24 '19 at 7:39
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