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Android : Check whether the phone is dual SIM
After a lot of research on forums, now I know that there is no way to find IMSI or SIM serial number for both the SIM cards in a dual SIM phone (except for contacting the manufacturer). Now my changed question is, can we at all detect that the phone has two SIMs? I believe it can be detected with so...
Test if a command outputs an empty string
...es in a directory. The following code achieves that, but see rsp's answer for a better solution.
Empty output
Commands don’t return values – they output them. You can capture this output by using command substitution; e.g. $(ls -A). You can test for a non-empty string in Bash like this:
if...
“Origin null is not allowed by Access-Control-Allow-Origin” error for request made by application ru
...
For the record, as far as I can tell, you had two problems:
You weren't passing a "jsonp" type specifier to your $.get, so it was using an ordinary XMLHttpRequest. However, your browser supported CORS (Cross-Origin Resource...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
... between them - otherwise it would not make any sense to have two commands for the very same thing.
15 Answers
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How to test which port MySQL is running on and whether it can be connected to?
... (not externally accessible). The 0.0.0.0 means "all interfaces", and therefore is (usually) externally visible.
– Keith
Dec 9 '16 at 0:39
...
How to check file input size with jQuery?
I have a form with file upload capabilities and I would like to be able to have some nice client side error reporting if the file the user is trying to upload is too big, is there a way to check against file size with jQuery, either purely on the client or somehow posting the file back to the server...
Display numbers with ordinal suffix in PHP
...rst, I do now think it best represents how the ordinal suffix system works for English.
– erisco
Jun 24 '10 at 14:44
6
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Drawing Isometric game worlds
...date: Corrected map rendering algorithm, added more illustrations, changed formating.
Perhaps the advantage for the "zig-zag" technique for mapping the tiles to the screen can be said that the tile's x and y coordinates are on the vertical and horizontal axes.
"Drawing in a diamond" approach:
By ...
Calling a Method From a String With the Method's Name in Ruby
...d("length")
# or
a.public_send("length")
which returns 3 as expected
or for a module function
FileUtils.send('pwd')
# or
FileUtils.public_send(:pwd)
and a locally defined method
def load()
puts "load() function was executed."
end
send('load')
# or
public_send('load')
Documentation:
...
Generate random string/characters in JavaScript
...
I think this will work for you:
function makeid(length) {
var result = '';
var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
var charactersLength = characters.length;
for ( var i...