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Moving and vanishing lines of code; trouble with Eclipse's XML Editor
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This bug is (finally) fixed in ADT 21. The fix is now available in ADT 21 Preview 9, posted a few minutes ago, here: https://android-review.googlesource.com/#/c/44936/1
The reason you get weird visual artifacts is that if a file contains br...
How to check if an int is a null
I have an object called Person .
8 Answers
8
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How can I determine the type of an HTML element in JavaScript?
...toLowerCase() means you also need to make sure nodeName exists (if it's at all possible elt is not, in fact, an element): if (elt.nodeName && elt.nodeName.toLowerCase() === 'div') { ... }
– Erik Koopmans
Nov 6 '17 at 7:10
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Why do I need to do `--set-upstream` all the time?
...he one at origin in the same way as git branch --set-upstream does.
Personally, I think it's a good thing to have to set up that association between your branch and one on the remote explicitly. It's just a shame that the rules are different for git push and git pull.
1 It may sound silly, but ...
Do you need break in switch when return is used?
...se return instead of break...
break is optional and is used to prevent "falling" through all the other case statements. So return can be used in a similar fashion, as return ends the function execution.
Also, if all of your case statements are like this:
case 'foo':
$result = find_result(...)...
Is there hard evidence of the ROI of unit testing?
...nit testing sounds great to me, but I'm not sure I should spend any time really learning it unless I can convince others that is has significant value. I have to convince the other programmers and, more importantly, the bean-counters in management, that all the extra time spent learning the testing...
Big-O summary for Java Collections Framework implementations? [closed]
...:
Collections Overview has a nice summary table.
Annotated Outline lists all of the implementations on one page.
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Calculate the date yesterday in JavaScript
...is would fail as getDate returns the day of the month (eg: 1 - 31) but actually setDate(0) sets the date to the last day of the previous month. Does this work across all browsers though?
– Drew Noakes
Mar 21 '14 at 14:19
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Difference between HTML “overflow : auto” and “overflow : scroll”
...content is clipped.
Scroll will however always show the scrollbar even if all content fits and you cant scroll it.
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Loop through an array in JavaScript
...ns
Too verbose
Imperative
Easy to have off-by-one errors (sometimes also called a fence post error)
2. Array.prototype.forEach
The ES5 specification introduced a lot of beneficial array methods, one of them, the Array.prototype.forEach and it gives us a concise way to iterate over an array:
co...