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What does yield mean in PHP?
.... Depending on your environment, doing a range(1, 1000000) will fatal your script whereas the same with a generator will just work fine. Or as Wikipedia puts it:
Because generators compute their yielded values only on demand, they are useful for representing sequences that would be expensive or ...
Local variables in nested functions
...
I banged my head on this wall for 3 hours today on a script for work. Your last point is very important, and is the main reason why I encountered this problem. I have callbacks with closures galore throughout my code, but trying the same technique in a loop is what got me.
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How to install the current version of Go in Ubuntu Precise
...t; <(curl -LSs 'https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer')
. "$HOME/.gvm/scripts/gvm"
and then it's as easy as doing this:
gvm install go1.1.1
gvm use go1.1.1 --default
The default flag at the end of the second command will set go1.1.1 to be your default ...
Why can I use a function before it's defined in JavaScript?
...entical and can be ambiguous in some cases.
This is documented in the ECMAScript standard, section 10.1.3. Unfortunately ECMA-262 is not a very readable document even by standards-standards!
*: the containing function, block, module or script.
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How to pass parameters in $ajax POST?
...tion is to use the jQuery.param function to build a query string that most scripts that process POST requests expect.
$.ajax({
url: 'superman',
type: 'POST',
data: jQuery.param({ field1: "hello", field2 : "hello2"}) ,
contentType: 'application/x-www-form-urlencoded; charset=UTF-8',
...
Error :Request header field Content-Type is not allowed by Access-Control-Allow-Headers
...ch additional headers are allowed. It just says, 'you're able to call this script from a page running somewhere else'
– Garet Claborn
Jun 17 '14 at 19:11
add a comment
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ImportError: No module named matplotlib.pyplot
...c python and since it doesn't have matplotlib you should always start your script with the one installed with ports.
If python your_script.py works then change the #! to:
#!/usr/bin/env python
Or put the full path to the python interpreter that has the matplotlib installed in its library.
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Get Image size WITHOUT loading image into memory
...fp.read(1)
i = i16(s)
if i in MARKER:
name, description, handler = MARKER[i]
# print hex(i), name, description
if handler is not None:
handler(self, i)
if i == 0xFFDA: # start of scan
rawmode = self.mode...
Get a list of URLs from a site [closed]
... a limit of 5000 links!..:( I'm looking for any free php sitemap generator script.
– Jenson M John
Aug 3 '13 at 10:25
14
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Showing all errors and warnings [duplicate]
...n the php.ini or your Apache configuration file.
You can turn it on in the script:
error_reporting(E_ALL);
ini_set('display_errors', '1');
You should see the same messages in the PHP error log.
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