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How to concatenate two numbers in javascript?
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You can also use toString function to convert it to string and concatenate.
var a = 5;
var b = 6;
var value = a.toString() + b.toString();
How to echo or print an array in PHP?
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You can use print_r, var_dump and var_export funcations of php:
print_r: Convert into human readble form
<?php
echo "<pre>";
print_r($results);
echo "</pre>";
?>
var_dump(): will show you the type of the thing as well as what's in it.
var_dump($results);
foreach loop: usi...
Best introduction to C++ template metaprogramming? [closed]
...Mapping Integral Constants to Types", 2.6 "Type Selection", 2.7 "Detecting Convertibility and Inheritance at Compile Time", 2.9 "NullType and EmptyType" and 2.10 "Type Traits".
The best intermediate/advanced resource I've found is C++ Template Metaprogramming by David Abrahams and Aleksey Gurtovoy,...
What is the correct answer for cout
...en updated. In particular:
In a shift operator expression E1<<E2 and E1>>E2, every value computation and side-effect of E1 is sequenced before every value computation and side effect of E2.
Which means that it requires the code to produce result b, which outputs 01.
See P0145R3 Re...
Javascript - removing undefined fields from an object [duplicate]
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Guys, this might look simple, but date objects will be converted to string. Beware
– sowdri
Jun 12 '18 at 4:07
2
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Get ID of last inserted document in a mongoDB w/ Java driver
... initializeVersionProperty(objectToSave);
maybeEmitEvent(new BeforeConvertEvent<T>(objectToSave, collectionName));
DBObject dbDoc = toDbObject(objectToSave, writer);
maybeEmitEvent(new BeforeSaveEvent<T>(objectToSave, dbDoc, collectionName));
Object id = insertDBObj...
How much is too much with C++11 auto keyword?
I've been using the new auto keyword available in the C++11 standard for complicated templated types which is what I believe it was designed for. But I'm also using it for things like:
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Is there a reason for C#'s reuse of the variable in a foreach?
...way that makes it highly prone to an error that is often difficult to find and debug, while producing no perceivable benefits.
Your criticism is entirely justified.
I discuss this problem in detail here:
Closing over the loop variable considered harmful
Is there something you can do with for...
Removing nan values from an array
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TypeError: only integer scalar arrays can be converted to a scalar index
– towry
Jun 30 '18 at 14:29
1
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Using HTML and Local Images Within UIWebView
...w property bundleURL was added in NSBundle. No need to take bundlePath and convert to URL. So for people working in versions higher than 10.6 this gives a better solution.
– rineez
Jul 13 '12 at 18:18
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