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What __init__ and self do on Python?
...elf._y = y
The __init__ method gets called when memory for the object is allocated:
x = Point(1,2)
It is important to use the self parameter inside an object's method if you want to persist the value with the object. If, for instance, you implement the __init__ method like this:
class Point:
...
Explanation of …
...gt;</script> , which contained code that looks like something out of PHP but with JavaScript tags.
7 Answers
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Function to return only alpha-numeric characters from string?
I'm looking for a php function that will take an input string and return a sanitized version of it by stripping away all special characters leaving only alpha-numeric.
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How to force garbage collector to run?
...seem more useful to have generations stay put unless enough stuff has been allocated in one to justify advancing it.
– supercat
Nov 23 '10 at 15:42
2
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How do I count the number of occurrences of a char in a String?
...rs are huge difference, but percetage wise...it adds up. Avoid the memory allocations - use a loop!
– Ben
Nov 18 '14 at 15:41
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show 12 mor...
How to prevent a jQuery Ajax request from caching in Internet Explorer?
...ks var ajaxfile = base+"index.php/msc/popup_view/"+obj+"/"+id+"/"+no_tab; $.ajax({type: "GET",url: ajaxfile, //contentType: "application/json; charset=utf-8", cache: false, success: function(msg){ $("#popup").html(msg); } });
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Edit and Continue: “Changes are not allowed when…”
...y match the original version is unchecked.
Check Enable Windows debug heap allocator (Native only) [VS Community 2017]
Are you using Microsoft Fakes? It inhibits Edit & Continue.
Kill all the *.vshost.exe instances by selecting End Process Tree in the Task Manager. VS will regenerate a correct i...
How can I pass arguments to a batch file?
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for /F "tokens=*" %%a in ('echo %*') do set "all_args=%%a"
– Kevin Edwards
Apr 11 '17 at 19:39
1
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When to Redis? When to MongoDB? [closed]
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Redis. Let’s say you’ve written a site in php; for whatever reason, it becomes popular and it’s ahead of its time or has porno on it. You realize this php is so freaking slow, "I’m gonna lose my fans because they simply won’t wait 10 seconds for a page." You ha...
Bogus foreign key constraint fail
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On demand, now as an answer...
When using MySQL Query Browser or phpMyAdmin, it appears that a new connection is opened for each query (bugs.mysql.com/bug.php?id=8280), making it neccessary to write all the drop statements in one query, eg.
SET FOREIGN_KEY_CHECKS=0;
DROP TABLE my_first_...