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When should Flask.g be used?
...on context.
Every request pushes a new application context, wiping the old one, so g can still be used to set flags per-request without change to code.
The application context is popped after teardown_request is called. (Armin's presentation explains this is because things like creating DB connectio...
C# vs C - Big performance difference
...length en.wikipedia.org/wiki/Welsh_language
– exceptionerror
Jun 12 '09 at 9:42
1
Doesn't that de...
How do I use a file grep comparison inside a bash if/else statement?
...PE being any command or sequence of commands, then:
if PIPE ; then
# do one thing if PIPE returned with zero status ($?=0)
else
# do another thing if PIPE returned with non-zero status ($?!=0), e.g. error
fi
For the record, [ expr ] is a shell builtin† shorthand for test expr.
Since grep...
Rubymine: How to make Git ignore .idea files created by Rubymine
...
It is a bad practice to commit IDE specific files. One reason is that different developers may use different tools. Another one is that those files may contain user specific configuration which will get conflict all the time.
– Jordan Silva
...
Why use prefixes on member variables in C++ classes
...
I'm all in favour of prefixes done well.
I think (System) Hungarian notation is responsible for most of the "bad rap" that prefixes get.
This notation is largely pointless in strongly typed languages e.g. in C++ "lpsz" to tell you that your string is a l...
Convert HH:MM:SS string to seconds only in javascript
... it's confusing and not clean code. Use parseInt(x, 10) instead. And avoid one-liner. Also prevent errors by undefined input. For example: it's not a string, has no ":" or only "HH:MM". etc.
– Dominik
Sep 26 '17 at 14:09
...
Does it make any sense to use inline keyword with templates?
...issues.
So in summary: For non fully specialized function templates, i.e. ones that carry at least one unknown type, you can omit inline, and not receive errors, but still they are not inline. For full specializations, i.e. ones that use only known types, you cannot omit it.
Proposed rule of thumb...
Query-string encoding of a Javascript Object
...r p in obj)
if (obj.hasOwnProperty(p)) {
str.push(encodeURIComponent(p) + "=" + encodeURIComponent(obj[p]));
}
return str.join("&");
}
console.log(serialize({
foo: "hi there",
bar: "100%"
}));
// foo=hi%20there&bar=100%25
Edit: this one also converts re...
Android: Clear the back stack
...
I also added one more clear Intent intent = new Intent(SingUpActivity.this, LoginActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP); ...
SQLAlchemy IN clause
...((123, 456))
)
).fetchall()
select() takes two parameters, the first one is a list of fields to retrieve, the second one is the where condition. You can access all fields on a table object via the c (or columns) property.
...