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throw Error('msg') vs throw new Error('msg')
...es act like a factory, like some other native constructors: Array, Object, etc. all check something like if (!(this instanceof Array)) { return new Array(arguments); }. (But note that String(x) and new String(x) are very different, and likewise for Number and Boolean.)
That said, in case of an erro...
How do I tidy up an HTML file's indentation in VI?
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FYI, tidy chokes if the HTML includes SVG (e.g., charts, etc.).
– Alex Quinn
Jan 24 '17 at 22:49
1
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Xcode build failure “Undefined symbols for architecture x86_64”
...on
I had several targets in Xcode with several schemas ( Production , Dev etc ) .. some of my newly added implementation ( Class.m ) were missing in
Xcode->Targets->Build Phases->Compile Sources
So I had to add them manually.
then I could compile & build successfully.
...
How to validate an Email in PHP?
...ess can contain UTF-8 characters or special domain names like .live, .news etc.
Also I find that some email address can be on Cyrilic and on all cases standard regex or filter_var() will fail.
That's why I made an solution for it:
function valid_email($email)
{
if(is_array($email) || is_nume...
What is the correct way of using C++11's range-based for?
...gers,
but instances of a more complex class, with custom copy constructor, etc.
// A sample test class, with custom copy semantics.
class X
{
public:
X()
: m_data(0)
{}
X(int data)
: m_data(data)
{}
~X()
{}
X(const X& other)
: m_data(ot...
Do htmlspecialchars and mysql_real_escape_string keep my PHP code safe from injection?
...a set of functions to check that inputs are integers, floats, alphanumeric etc. But when it comes to SQL, heed most the value of the prepared statement. The above code would have been secure if it was a prepared statement as the database functions would have known that 1 OR 1=1 is not a valid lite...
Efficient way to apply multiple filters to pandas DataFrame or Series
...i'd used: df[f_2 & f_3 & f_4 & f_5 ] with f_2 = df["a"] >= 0etc. No need for that function... (nice use of higher order function though...)
– A. Rabus
Aug 29 '19 at 8:29
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urllib2.HTTPError: HTTP Error 403: Forbidden
... in your case, it genuinely requires authentication with basic auth, oauth etc.
– Supreet Sethi
Feb 23 '18 at 23:35
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What are Flask Blueprints, exactly?
... blueprints for the static pages (i.e. signed-out home, register,
about, etc.), the dashboard (i.e. the news feed), profiles
(/robert/about and /robert/photos), settings (/settings/security and
/settings/privacy) and many more. These components all share a general
layout and styles, but each...
How do I check if a variable exists?
...is condition to be true even if myVar is an empty list, zero, empty string etc.
– Gabriel
Jul 27 '18 at 18:09
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