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Converting any string into camel case
...camelize(str) {
return str.replace(/(?:^\w|[A-Z]|\b\w)/g, function(word, index) {
return index === 0 ? word.toLowerCase() : word.toUpperCase();
}).replace(/\s+/g, '');
}
camelize("EquipmentClass name");
camelize("Equipment className");
camelize("equipment class name");
camelize("Equipment C...
Force R not to use exponential notation (e.g. e+10)?
...the appropriate notes. It can be confusing to someone who is looking for a quick solution (and Google shows the first one as the result).
– xbsd
Feb 11 '19 at 21:51
add a comm...
Why use multiple columns as primary keys (composite primary key)
..." link is particularly stupid, the info is self-serving and false. 2) The index on the columns that make the row unique cannot be avoided. A "surrogate" ID with an index is always an additional column and an additional index. Rather silly because it is redundant. And slower.
–...
How to reset a single table in rails?
...
To reset the index/primary key in SQLite just type:
$ rails console
> ActiveRecord::Base.connection.execute("DELETE from sqlite_sequence where name = 'yourtablename'")
...
Why is SELECT * considered harmful?
...st and weren't needed when the original consumers coded their data access.
Indexing issues. Consider a scenario where you want to tune a query to a high level of performance. If you were to use *, and it returned more columns than you actually needed, the server would often have to perform more ex...
What is a handle in C++?
...
A handle can be anything from an integer index to a pointer to a resource in kernel space. The idea is that they provide an abstraction of a resource, so you don't need to know much about the resource itself to use it.
For instance, the HWND in the Win32 API is a h...
Why is sizeof considered an operator?
...
Because the C standard says so, and it gets the only vote.
As consequences:
The operand of sizeof can be a parenthesised type, sizeof (int), instead of an object expression.
The parentheses are unnecessary: int a; printf("%d\n", sizeof a); is perfectly fine. They're often seen, firstly bec...
How to reload/refresh an element(image) in jQuery
...ssible to reload an image with an identical file name from a server using jQuery?
12 Answers
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Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath:
...
You're using the dequeueReusableCellWithIdentifier:forIndexPath: method. The documentation for that method says this:
Important: You must register a class or nib file using the registerNib:forCellReuseIdentifier: or registerClass:forCellRe...
Is it possible to get element from HashMap by its position?
...st HashMap.
Here is an approach that will allow you to get a value by its index in the map:
public Object getElementByIndex(LinkedHashMap map,int index){
return map.get( (map.keySet().toArray())[ index ] );
}
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