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What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
...is helps someone out there because I was struggling with it for a bit just now!
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MySQL error: key specification without a key length
...----+
In this case, index selectivity is equal to IS=1/3 = 0.33.
Let us now see what will happen if we increase number of indexed characters to two (N=2).
+---------------+-----------+
| indexedValue | rows |
+---------------+-----------+
| ab | 1,2 |
| ad | 3 ...
What is Double Brace initialization in Java?
... }});
}};
return source;
}
}
The returned Map will now contain a reference to the enclosing instance of ReallyHeavyObject. You probably don't want to risk that:
Image from http://blog.jooq.org/2014/12/08/dont-be-clever-the-double-curly-braces-anti-pattern/
3. You can pret...
“using namespace” in c++ headers
...ment. As for template functions defined in headers, unfortunately I don't know of a good solution other than just writing out the namespace... Perhaps you could put a using declaration within a separate scope { /* using statement in between brackets */ }, that would at least prevent it from escaping...
PHP CURL CURLOPT_SSL_VERIFYPEER ignored
...HTTPS. Everything was working fine untill I ran upgrade of curl libraries. Now I am experiencing this response when trying to perform CURL requests: Problem with the SSL CA cert (path? access rights?)
...
Running MSBuild fails to read SDKToolsPath
...ols. I've recently upgraded all the project/solution files to VS2010, and now my build fails with the following error:
25 ...
How do I enumerate through a JObject?
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Now how do I use it for nested JSON? For example, if the "value" contains another set of key:value pairs, how can I use the JToken value to iterate through next set of pairs?
– AlbatrossCafe
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What's the difference between String(value) vs value.toString()
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String(o);
} catch (e) {
alert(e); // TypeError
}
If you want to know more about this mechanism I would recommend looking at the ToPrimitive and the ToString internal operations.
I also recommend reading this article:
Object-to-Primitive Conversions in JavaScript
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How can I get clickable hyperlinks in AlertDialog from a string resource?
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Its been a while and fromHtml is deprecated, now what?
– Menasheh
Jul 21 '16 at 4:36
You...
Any reason not to use '+' to concatenate two strings?
...n, results in unnecessary function calls which could add to the overhead.
Now coming back to the question. Should one discourage the use of + over join in all cases?
I believe no, things should be taken into consideration
Length of the String in Question
No of Concatenation Operation.
And off-...