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boolean in an if statement
...== entirely.
As an example of how confusing it can be:
var x;
x = 0;
console.log(x == true); // false, as expected
console.log(x == false); // true as expected
x = 1;
console.log(x == true); // true, as expected
console.log(x == false); // false as expected
x = 2;
console.l...
Git - Difference Between 'assume-unchanged' and 'skip-worktree'
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109
A small note to save few seconds searching and reading. To cancel --skip-worktree effects and unset the flag there is --no-skip-worktree op...
How to pause a YouTube player when hiding the iframe?
...ementById("popupVid");
var iframe = div.getElementsByTagName("iframe")[0].contentWindow;
div.style.display = state == 'hide' ? 'none' : '';
func = state == 'hide' ? 'pauseVideo' : 'playVideo';
iframe.postMessage('{"event":"command","func":"' + func + '","args":""}', '*');
}
</scri...
Adjust UILabel height depending on the text
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409
sizeWithFont constrainedToSize:lineBreakMode: is the method to use. An example of how to use it...
Java inner class and static nested class
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Code-Apprentice
65.3k1717 gold badges106106 silver badges211211 bronze badges
answered Sep 16 '08 at 8:28
MartinMartin
...
Fast way of finding lines in one file that are not in another?
I have two large files (sets of filenames). Roughly 30.000 lines in each file. I am trying to find a fast way of finding lines in file1 that are not present in file2.
...
How to make part of the text Bold in android at runtime?
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230
Say you have a TextView called etx. You would then use the following code:
final SpannableStrin...
Attach to a processes output for viewing
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answered Apr 3 '09 at 21:20
Don WerveDon Werve
4,98222 gold badges2323 silver badges3131 bronze badges
...
Transaction isolation levels relation with locks on table
.... This means B reads the data under some condition i.e. WHERE aField > 10 AND aField < 20, A inserts data where aField value is between 10 and 20, then B reads the data again and get a different result.
SERIALIZABLE - lock on a full table(on which Select query is fired). This means, B reads th...
What is the purpose of setting a key in data.table?
...e other vignettes that we plan to.
I've updated this answer again (Feb 2016) in light of the new on= feature that allows ad-hoc joins as well. See history for earlier (outdated) answers.
What exactly does setkey(DT, a, b) do?
It does two things:
reorders the rows of the data.table DT by the...
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