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Can you add new statements to Python's syntax?
...hon uses a custom parser generator named pgen. This is a LL(1) parser that converts Python source code into a parse tree. The input to the parser generator is the file Grammar/Grammar[1]. This is a simple text file that specifies the grammar of Python.
[1]: From here on, references to files in the ...
ruby 1.9: invalid byte sequence in UTF-8
...-op, and no checks are run. Ruby Core Documentation for encode. However, converting it to UTF-16 first forces all the checks for invalid byte sequences to be run, and replacements are done as needed.
– Jo Hund
Aug 11 '13 at 18:32
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Shell Script — Get all files modified after
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Converting an arbitrary timestamp into a fractional, relative amount of time seems neither correct nor particularly convenient. The solution below using -newermt is much nicer.
– Bobby Jack
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Get data from fs.readFile
... if (Buffer.isBuffer( data){ result = data.toString('utf8'); } Now we have converted the buffer into readable text. This is good for reading a plaintext file or testing the file against format types. I could do a try/catch to see if it's a JSON file for example; but only after buffer is converted to...
Does Java casting introduce overhead? Why?
...ception.
Taken from JavaWorld: The cost of casting
Casting is used to convert between
types -- between reference types in
particular, for the type of casting
operation in which we're interested
here.
Upcast operations (also called
widening conversions in the Java
Language Spec...
PHP Array to CSV
I'm trying to convert an array of products into a CSV file, but it doesn't seem to be going to plan. The CSV file is one long line, here is my code:
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Best practices/performance: mixing StringBuilder.append with String.concat
...done automatically by the compiler.
The Java2 compiler will automatically convert the following:
String s = s1 + s2;
to
String s = (new StringBuffer()).append(s1).append(s2).toString();
Taken straight from the Java Best Practices on Oracles website.
...
What is the difference between localStorage, sessionStorage, session and cookies?
...ocalStorage only allow you to store strings - it is possible to implicitly convert primitive values when setting (these will need to be converted back to use them as their type after reading) but not Objects or Arrays (it is possible to JSON serialise them to store them using the APIs). Session stor...
appending array to FormData and send via AJAX
...
You have several options:
Convert it to a JSON string, then parse it in PHP (recommended)
JS
var json_arr = JSON.stringify(arr);
PHP
$arr = json_decode($_POST['arr']);
Or use @Curios's method
Sending an array via FormData.
Not recommended: Seriali...
Difference between null and empty (“”) Java String
...not, 20 is a number). Same case for null: it's not a string, but it can be converted to one if you try to add it.
– daboross
Mar 4 '18 at 9:13
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