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Get size of folder or file
...ile("myfile.txt");
file.length();
This returns the length of the file in bytes or 0 if the file does not exist. There is no built-in way to get the size of a folder, you are going to have to walk the directory tree recursively (using the listFiles() method of a file object that represents a direct...
What's the best way to iterate an Android Cursor?
...
Just to add a few cents... Don't check if cursor has data by calling moveToFirst() before you are going to iterate over cursor - you will lose the first entry
– AAverin
Nov 13 '13 at 16:36
...
TimeSpan ToString format
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
~x + ~y == ~(x + y) is always false?
...hat there exists some x and some y (mod 2n) such that
~(x+y) == ~x + ~y
By two's complement*, we know that,
-x == ~x + 1
<==> -1 == ~x + x
Noting this result, we have,
~(x+y) == ~x + ~y
<==> ~(x+y) + (x+y) == ~x + ~y + (x+y)
<==> ~(x+y) + (x+y) == (~x + x) + (...
Easiest way to activate PHP and MySQL on Mac OS 10.6 (Snow Leopard), 10.7 (Lion), 10.8 (Mountain Lio
...ondering where's the php.ini, there isn't any! but you can add one to /etc by copying /etc/php.ini.default to /etc/php.ini
– cregox
Apr 6 '10 at 21:23
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How do I create a new GitHub repo from a branch in an existing repo?
...ld repo's new-project, with
all history preserved.
In fact, I found that by using this method, I could create the new repo with a hand-picked selection of branches, renamed as I wanted:
$ git push git@github.com:accountname/new_repo +new-project:master +site3a:rails3
The result is that the pre-e...
Limit labels number on Chart.js line chart
... a better solution.
The following snippet will hide labels automatically. By modify xLabels with empty string before invoke draw() and restore them after then. Even more, re-rotating x labels can be applied as there's more space after hiding.
var axisFixedDrawFn = function() {
var self = this
...
Question mark and colon in JavaScript
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How to check if object property exists with a variable holding the property name?
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This is incorrect. By putting quotes around the name myProp, you are no longer referencing the value of myProp, rather you are declaring a new String() of 'myProp' and there is no such property of 'myProp' in myObj.
– Triu...
Is the ternary operator faster than an “if” condition in Java [duplicate]
...nd, I would say, very readable. Moreover, as has been pointed out, at the byte code level there's really no difference between the ternary operator and if-then-else. As in the above example, the decision on which to choose is based wholly on readability.
Moreover, this pattern enables you to make...