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what exactly is device pixel ratio?
this is mentioned every article about mobile web, but nowhere I can found an explanation of what exactly does this attribute measure.
Can anyone please elaborate what does queries like this check?
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Javascript swap array elements
...r belts:
Given the array arr = [1,2,3,4], you can swap values in one line now like so:
[arr[0], arr[1]] = [arr[1], arr[0]];
This would produce the array [2,1,3,4]. This is destructuring assignment.
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How to create a simple map using JavaScript/JQuery [duplicate]
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This answer is now out of date as Map does exist now (yay!), read the following: developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– basickarl
Jul 25 '16 at 1:29
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Extracting the last n characters from a string in R
...r had been remade using stringi as a backend, so should work with NAs etc. now.
– m-dz
Jul 11 '16 at 10:09
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Build Error - missing required architecture i386 in file
...eveloper/SDKs/iPhoneOS3.1.sdk/System/Library/Frameworks\"",);
My project now build for both the iPhone device and the iPhoneSimulator.
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How to place the ~/.composer/vendor/bin directory in your PATH?
...thods to install Laravel to no avail. Error messages everything I try. I'm now trying the first method in the quickstart documentation, that is, via Laravel Installer, but it says to "Make sure to place the ~/.composer/vendor/bin directory in your PATH so the Laravel executable is found when you...
How to mark-up phone numbers?
... link in an HTML document. I have read the microformats approach , and I know, that the tel: scheme would be standard, but is quite literally nowhere implemented.
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How can I start PostgreSQL server on Mac OS X?
...al/var/postgres stop
Start automatically
"To have launchd start postgresql now and restart at login:"
brew services start postgresql
What is the result of pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start?
What is the result of pg_ctl -D /usr/local/var/postgres status?
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How to comment and uncomment blocks of code in the Office VBA Editor
...Comment Block entry onto the Menu Bar (yep! the menu bar)
Note: You should now see a new icon on the menu bar.
Make sure that the new icon is highlighted (it will have a black square around it) then
click Modify Selection button on the Customize dialog box.
An interesting menu will popup.
Under ...
Is there an auto increment in sqlite?
...NT NOT NULL,
ADDRESS CHAR(50),
SALARY REAL
);
Now, insert following records into table TB_COMPANY_INFO:
INSERT INTO TB_COMPANY_INFO (NAME,AGE,ADDRESS,SALARY)
VALUES ( 'MANOJ KUMAR', 40, 'Meerut,UP,INDIA', 200000.00 );
Now Select the record
SELECT *FROM TB_COMPANY_INF...