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Is It Possible to Sandbox JavaScript Running In the Browser?
...; // object: object q=1 w=2
}
}).eval({
code : "[1, 2, 3].concat(input)",
input : [4, 5, 6],
callback: function(arr) {
console.log("array: ", arr); // array: [1, 2, 3, 4, 5, 6]
}
}).eval({
code : "function x(z){this.y=z;};new x(input)",
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PHP - iterate on string characters
Is there a nice way to iterate on the characters of a string? I'd like to be able to do foreach , array_map , array_walk , array_filter etc. on the characters of a string.
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How to recursively list all the files in a directory in C#?
...tring> GetFilesFromDir(string dir) =>
Directory.EnumerateFiles(dir).Concat(
Directory.EnumerateDirectories(dir)
.SelectMany(subdir => GetFilesFromDir(subdir)));
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SQL Server: converting UniqueIdentifier to string in a case statement
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I think I found the answer:
convert(nvarchar(50), RequestID)
Here's the link where I found this info:
http://msdn.microsoft.com/en-us/library/ms187928.aspx
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Extracting the last n characters from a ruby string
To get the last n characters from a string, I assumed you could use
8 Answers
8
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Struct Constructor in C++?
...s.
struct blocknode
{
unsigned int bsize;
bool free;
unsigned char *bptr;
blocknode *next;
blocknode *prev;
blocknode(unsigned int sz, unsigned char *b, bool f = true,
blocknode *p = 0, blocknode *n = 0) :
bsize(sz), free(f), bptr(b), prev(p), ne...
Is C++14 adding new keywords to C++?
...ch else namespace static_assert using
char enum new static_cast virtual
char16_t explicit noexcept struct void
char32_t export nullptr switch ...
Is there a way to check if a file is in use?
...is closed after I'm done. I think you'll find that the using() {} is less characters than try {} finally { obj.Dispose() }. You'll also find that you now need to declare your object reference outside the using statement, which is more typing. If you have a explicit interface you'd also have to cas...
How can strings be concatenated?
How to concatenate strings in python?
7 Answers
7
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Getting the first character of a string with $str[0]
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Yes. Strings can be seen as character arrays, and the way to access a position of an array is to use the [] operator. Usually there's no problem at all in using $str[0] (and I'm pretty sure is much faster than the substr() method).
There is only one ca...