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Is it possible to use “/” in a filename?
...ot something that should ever be done, but is there a way to use the slash character that normally separates directories within a filename in Linux?
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Rails ActionMailer - format sender and recipient name/email address
...e the name and email, you can end up with an invalid From header by simply concatenating strings. Here is a safe way:
require 'mail'
address = Mail::Address.new email # ex: "john@example.com"
address.display_name = name.dup # ex: "John Doe"
# Set the From or Reply-To header to the following:
addr...
What reason is there to use null instead of undefined in JavaScript?
...eed to make different falsy checks. It would not be the last time that you concat a null object to a string and get a "null" as a string. Or passing a 0 as numeric value and wondering why the IF statement handles is t as a false.
– com2ghz
Feb 11 '16 at 9:29
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Print all but the first three columns
.../,"")}1'
4 5 6
If you have an FS that's an RE you can't negate in a character set, you can convert it to a single char first (RS is ideal if it's a single char since an RS CANNOT appear within a field, otherwise consider SUBSEP), then apply the RE interval subsitution, then convert to the OFS...
Capture characters from standard input without waiting for enter to be pressed
...up so infrequently for me. But in C or C++, what is the best way to read a character from standard input without waiting for a newline (press enter).
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What's the best way to do a backwards loop in C/C#/C++?
...mpile time, if given a pointer:
template<typename T, std::size_t N> char (& array_size(T(&)[N]) )[N];
It works by getting the size of the passed array first, and then declaring to return a reference to an array of type char of the same size. char is defined to have sizeof of: 1. So ...
Received an invalid column length from the bcp client for colid 6
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Specifically, if you have any columns that are VARCHAR smaller than 4, watch out for NULL in your data getting misinterpreted as the 4char string "NULL"
– CrazyPyro
Feb 11 at 8:13
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Is there a splice method for strings?
...y case im working on a dynamic string so i need to specify indices and not character value .
– ProllyGeek
Dec 28 '13 at 18:11
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What is the difference between LL and LR parsing?
...o parsing algorithms you mentioned (LL and LR) are known to have different characteristics. LL parsers tend to be easier to write by hand, but they are less powerful than LR parsers and accept a much smaller set of grammars than LR parsers do. LR parsers come in many flavors (LR(0), SLR(1), LALR(1...
Java Reflection: How to get the name of a variable?
...UE
public static final java.lang.Class java.lang.Integer.TYPE
static final char[] java.lang.Integer.digits
static final char[] java.lang.Integer.DigitTens
static final char[] java.lang.Integer.DigitOnes
static final int[] java.lang.Integer.sizeTable
private static java.lang.String java.lang.Integer....