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What makes Lisp macros so special?
...DSLs). These languages are embedded right into the existing Lisp code. Now, the DSLs can have syntax similar to Lisp (like Peter Norvig's Prolog Interpreter for Common Lisp) or completely different (e.g. Infix Notation Math for Clojure).
Here is a more concrete example:Python has list compreh...
Link and execute external JavaScript file hosted on GitHub
...
There is a good workaround for this, now, by using jsdelivr.net.
Steps:
Find your link on GitHub, and click to the "Raw" version.
Copy the URL.
Change raw.githubusercontent.com to cdn.jsdelivr.net
Insert /gh/ before your username.
Remove the branch name.
(Opt...
how to install gcc on windows 7 machine?
...
EDIT Since not so recently by now, MinGW-w64 has "absorbed" one of the toolchain building projects. The downloads can be found here. The installer should work, and allow you to pick a version that you need.
Note the Qt SDK comes with the same toolchain. ...
How do you use version control with Access development?
...ercase spelling. For example: every file that once contained "OrderNumber" now contains "Ordernumber" in the export and is therefore marked as "changed" (at least by SVN, didn't try other SCM yet). Any idea how I can avoid this? Thanks a lot!
– Christian Specht
...
Is there a good jQuery Drag-and-drop file upload plugin? [closed]
... I am looking for a file upload plugin too, this one don't work now-2015 (maybe it worked back in 2011).. Does somebody know a working "fileupload" plugin?
– Eran Meir
Dec 5 '15 at 17:11
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Is there a way to automatically build the package.json file for Node.js projects
...
seem it don't create package.json now. win7x64 node0.10.9
– atian25
Jun 24 '13 at 2:51
33
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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
...ion of my block for 10 seconds.
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 10 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
NSLog(@"parameter1: %d parameter2: %f", parameter1, parameter2);
});
More: https://developer.apple.com/documentation/dispatch/1452876-dispatch_after
...
Node: log in a file instead of the console
...This was written around Node v0.2 and v0.4; There are much better utilites now around logging. I highly recommend Winston
Update Late 2013 - We still use winston, but now with a logger library to wrap the functionality around logging of custom objects and formatting. Here is a sample of our logger....
This IP, site or mobile application is not authorized to use this API key
...rlatitude,yourlongitude&radius=5000&sensor=true&key=SERVERKEY
Now, to obtain the server key, just follow these steps:
1) Go to Developer Console https://code.google.com/apis/console/
2) In the Credentials, under Public API Access, Create New key
3) Select the server key from the opti...
How do I integrate Ajax with Django applications?
...eturn the index.html and replace all the variables as asked (you probably know all this by now).
Now let's talk about AJAX. AJAX calls are client-side code that does asynchronous requests. That sounds complicated, but it simply means it does a request for you in the background and then handles the ...