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Sort array by firstname (alphabetically) in Javascript
...ents and compare them (comparator)
It should return
something negative if first argument is less than second (should be placed before the second in resulting array)
something positive if first argument is greater (should be placed after second one)
0 if those two elements are equal.
In our ca...
What does !! mean in ruby?
... Why not just return .nil? instead of using !!? Is there a difference?
– ashes999
Sep 3 '14 at 13:52
3
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How to calculate time in hours between two dates in iOS
...culate the time elapsed in hours between two times (possibly occurring on different days) in iOS?
5 Answers
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Why are these numbers not equal?
...equal function. Or rather, since all.equal gives lots of detail about the differences if there are any, isTRUE(all.equal(...)).
if(isTRUE(all.equal(i,0.15))) cat("i equals 0.15") else cat("i does not equal 0.15")
yields
i equals 0.15
Some more examples of using all.equal instead of == (the las...
Android: allow portrait and landscape for tablets, but force portrait on phone?
...
Here's a good way using resources and size qualifiers.
Put this bool resource in res/values as bools.xml or whatever (file names don't matter here):
<?xml version="1.0" encoding="utf-8"?>
<resources>
<bool name="portrait_only">true</...
How do I get the first n characters of a string without checking the size or going out of bounds?
... is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think harder to understand the code. IMO, the code's meaning is more obvious in the if / else version. For a cleaner / more readable solutio...
regex.test V.S. string.match to know if a string matches a regular expression
Many times I'm using the string match function to know if a string matches a regular expression.
3 Answers
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Detect IF hovering over element with jQuery
... looking for an action to call when hovering, but instead a way to tell if an element is being hovered over currently. For instance:
...
JavaScript: remove event listener
...t.
var click_count = 0;
function myClick(event) {
click_count++;
if(click_count == 50) {
// to remove
canvas.removeEventListener('click', myClick);
}
}
// to add
canvas.addEventListener('click', myClick);
EDIT: You could close around the click_counter variable like t...
Check if all values of array are equal
... might be a bit late to the party... i think this doesn't work if your array is made of falses! for example try [false, false, false].reduce(function(a, b){return (a === b)?a:false;});
– George Flourentzos
Nov 27 '14 at 19:21
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