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string.charAt(x) or string[x]?
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Bracket notation now works on all major browsers, except for IE7 and below.
// Bracket Notation
"Test String1"[6]
// charAt Implementation
"Test String1".charAt(6)
It used to be a bad idea to use brackets, for these reasons (Source):
This...
Is it bad practice to use Reflection in Unit testing? [duplicate]
...the values of them. I always thought that the Reflection API is also used for this purpose.
7 Answers
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How to remove leading and trailing whitespace in a MySQL field?
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You're looking for TRIM.
UPDATE FOO set FIELD2 = TRIM(FIELD2);
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Copy and paste content from one file to another file in vi
I am working with two files, and I need to copy a few lines from one file and paste into another file. I know how to copy (yy) and paste (p) in the same file. But that doesn't work for different files. How is this done?
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With arrays, why is it the case that a[5] == 5[a]?
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The C standard defines the [] operator as follows:
a[b] == *(a + b)
Therefore a[5] will evaluate to:
*(a + 5)
and 5[a] will evaluate to:
*(5 + a)
a is a pointer to the first element of the array. a[5] is the value that's 5 elements further from a, which...
How to wrap async function calls into a sync function in Node.js or Javascript?
...off your users, getData API cannot be changed to return merely a promise or demand a callback parameter. How do you meet both requirements?
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Python - Create a list with initial capacity
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def doAppend( size=10000 ):
result = []
for i in range(size):
message= "some unique object %d" % ( i, )
result.append(message)
return result
def doAllocate( size=10000 ):
result=size*[None]
for i in range(size):
message= "some un...
Returning anonymous type in C#
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You can't.
You can only return object, or container of objects, e.g. IEnumerable<object>, IList<object>, etc.
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How to concatenate text from multiple rows into a single text string in SQL server?
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If you are on SQL Server 2017 or Azure, see Mathieu Renda answer.
I had a similar issue when I was trying to join two tables with one-to-many relationships. In SQL 2005 I found that XML PATH method can handle the concatenation of the rows very easily.
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Why is Java's boolean primitive size not defined?
The Java Virtual Machine Specification says that there is limited support for boolean primitive types.
7 Answers
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