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How do I use the conditional operator (? :) in Ruby?

..." : "false" then expected puts to return the boolean which then became the string value. – Fresheyeball Aug 25 '15 at 23:16 add a comment  |  ...
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In .NET, which loop runs faster, 'for' or 'foreach'?

...tably faster, why shouldn't you start using it in general? It doesn't take extra time. – DevinB Sep 3 '09 at 13:06 50 ...
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What is the correct way to make a custom .NET Exception serializable?

... { } public SerializableExceptionWithoutCustomProperties(string message) : base(message) { } public SerializableExceptionWithoutCustomProperties(string message, Exception innerException) : base(message, innerException) { ...
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Why is the use of tuples in C++ not more common?

... especially if those, too are namespace scoped. Take boost::tuple<std::string,std::set<std::string>,std::vector<My::Scoped::LongishTypeName> > as a ridiculous example. – Ogre Psalm33 Jun 14 '11 at 20:06 ...
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ObjectiveC Parse Integer from String

I'm trying to extract a string (which contains an integer) from an array and then use it as an int in a function. I'm trying to convert it to a int using intValue. ...
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Read Excel File in Python

.... You mentioned in the question that you also want the values output to a string. I dynamically build a format string for the output from the FORMAT column list. Rows are appended to the values string separated by a new line char. The output column order is determined by the order of the column na...
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Remove the last line from a file in Bash

...ith the extension provided as a parameter. Since the parameter is an empty string, no backup file is created. -e tells sed to execute a command. The command $ d means: find the last line ($) and delete it (d). – Krzysztof Szafranek Mar 3 '19 at 14:05 ...
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Skip certain tables with mysqldump

... EXCLUDED_TABLES=( table1 table2 table3 table4 tableN ) IGNORED_TABLES_STRING='' for TABLE in "${EXCLUDED_TABLES[@]}" do : IGNORED_TABLES_STRING+=" --ignore-table=${DATABASE}.${TABLE}" done echo "Dump structure" mysqldump --host=${HOST} --user=${USER} --password=${PASSWORD} --single-transact...
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Nested fragments disappear during transition animation

...te solution in the thread. Does not require a bitmap, does not require any extra code in the child fragment, and does not really leak information from the parent to the child fragment. – jacobhyphenated Jun 13 '14 at 14:52 ...
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What is a NullReferenceException, and how do I fix it?

...ess members (such as methods) through a null reference. The simplest case: string foo = null; foo.ToUpper(); This will throw a NullReferenceException at the second line because you can't call the instance method ToUpper() on a string reference pointing to null. Debugging How do you find the source ...