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How to use hex color values
... a combination of the previous methods. There is absolutely no need to use strings.
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Javascript object Vs JSON
...nderstand the basic differences clearly between Javascript object and JSON string.
5 Answers
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How to use an existing database with an Android application [duplicate]
...trying this code, please find this line in the below code:
private static String DB_NAME ="YourDbName"; // Database name
DB_NAME here is the name of your database. It is assumed that you have a copy of the database in the assets folder, so for example, if your database name is ordersDB, then the ...
How can I loop through a C++ map of maps?
...+11 - you can use a ranged based for loop and simply do:
std::map<std::string, std::map<std::string, std::string>> mymap;
for(auto const &ent1 : mymap) {
// ent1.first is the first key
for(auto const &ent2 : ent1.second) {
// ent2.first is the second key
// ent2.sec...
Empty arrays seem to equal true and false at the same time
...are values of this object and the primitive false value. Internally, arr.toString() is called, which returns an empty string "".
This is because toString called on Array returns Array.join(), and empty string is one of falsy values in JavaScript.
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How to respond with HTTP 400 error in a Spring MVC @ResponseBody method returning String?
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What if you are passing something other than a string back? As in a POJO or other object?
– mrshickadance
Nov 18 '14 at 16:28
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The specified named connection is either not found in the configuration, not intended to be used wit
...ne entity framework object and when I add it to my project, the connectionstring
is added to app.config in the connectionstring section, but when I want to create new entitycontext and use this connectionstring , this error appears
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Guava equivalent for IOUtils.toString(InputStream)
Apache Commons IO has a nice convenience method IOUtils.toString() to read an InputStream to a String.
9 Answers
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What is the advantage of using heredoc in PHP? [closed]
...eredoc syntax is much cleaner to me and it is really useful for multi-line strings and avoiding quoting issues. Back in the day I used to use them to construct SQL queries:
$sql = <<<SQL
select *
from $tablename
where id in [$order_ids_list]
and product_name = "widgets"
SQL;
To me...
How do you return a JSON object from a Java Servlet
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I do exactly what you suggest (return a String).
You might consider setting the MIME type to indicate you're returning JSON, though (according to this other stackoverflow post it's "application/json").
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