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Send message to specific client with socket.io and node.js
I'm working with socket.io and node.js and until now it seems pretty good, but I don't know how to send a message from the server to an specific client, something like this:
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Why is it impossible to build a compiler that can determine if a C++ function will change the value
I read this line in a book:
13 Answers
13
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How to avoid “too many parameters” problem in API design?
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One style embraced in the frameworks is usually like grouping related parameters into related classes (but yet again problematic with mutability):
var request = new HttpWebRequest(a, b);
var service = new RestService(request, c, d, e);
var client = new RestC...
Full examples of using pySerial package [closed]
...ease show me a full python sample code that uses pyserial , i have the package and am wondering how to send the AT commands and read them back!
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How do I lowercase a string in C?
... the string and convert each character to lowercase.
Something trivial like this:
#include <ctype.h>
for(int i = 0; str[i]; i++){
str[i] = tolower(str[i]);
}
or if you prefer one liners, then you can use this one by J.F. Sebastian:
for ( ; *p; ++p) *p = tolower(*p);
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Automatic popping up keyboard on start Activity
...y it automatically focusses to the first EditText and displays the virtual keyboard.
19 Answers
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Get class name using jQuery
...ar className = $('#sidebar div:eq(14)').attr('class');
should do the trick. For the ID use .attr('id').
If you are inside an event handler or other jQuery method, where the element is the pure DOM node without wrapper, you can use:
this.className // for classes, and
this.id // for IDs
Both are...
How can I print literal curly-brace characters in python string and also use .format on it?
gives me : Key Error: Hello\\
16 Answers
16
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How to see the changes in a Git commit?
...t diff COMMIT I see the changes between that commit and HEAD (as far as I know), but I would like to see the changes that were made by that single commit.
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PHP and MySQL - how to avoid password in source code? [duplicate]
...e / password are hard-coded in the PHP code. A situation I do not really like, for example, since the code is also available in a repository.
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