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Simple logical operators in Bash
...ditional expressions are mostly built on operators such as -n $variable to test if a variable is empty and -e $file to test if a file exists. There are also string equality operators: "$string1" == "$string2" (beware that the right-hand side is a pattern, e.g. [[ $foo == a* ]] tests if $foo starts w...
How to mkdir only if a directory does not already exist?
...ady exist, in which case I do not want to do anything. So I want to either test to see that the directory does not exist, or suppress the "File exists" error that mkdir throws when it tries to create an existing directory.
...
What characters are forbidden in Windows and Linux directory names?
.../, '\0'; the name . was the current directory, of course). It was used to test the Bourne shell and routinely wrought havoc on unwary programs such as backup programs.
Other people have covered the Windows rules.
Note that MacOS X has a case-insensitive file system.
1 It was Kernighan & Pik...
java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
While running junit test in eclipse I am getting this Exception :
17 Answers
17
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erb, haml or slim: which one do you suggest? And why? [closed]
... @JoshuaMuheim Slim comes with benchmark code that you can modify/test on your own machine: github.com/stonean/slim#testing
– Gerry
Aug 28 '12 at 21:39
...
Most efficient way to increment a Map value in Java
...
Some test results
I've gotten a lot of good answers to this question--thanks folks--so I decided to run some tests and figure out which method is actually fastest. The five methods I tested are these:
the "ContainsKey" method t...
php static function
...is an object of this class. It does not apply to static functions.
class test {
public function sayHi($hi = "Hi") {
$this->hi = $hi;
return $this->hi;
}
}
class test1 {
public static function sayHi($hi) {
$hi = "Hi";
return $hi;
}
}
// Test
$...
Does C have a “foreach” loop construct?
...rgv[])
{
list_node list[] = {
{ .next = &list[1], .data = "test 1" },
{ .next = &list[2], .data = "test 2" },
{ .next = NULL, .data = "test 3" }
};
FOR_EACH(item, list)
puts((char *) item->data);
return 0;
}
...
With CSS, use “…” for overflowed block of multi-lines
...tml
http://github.com/tbasse/jquery-truncate
There also some preformance tests.
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Are PHP Variables passed by value or by reference?
... reference using an '&'.
Assigned by value/reference example:
$var1 = "test";
$var2 = $var1;
$var2 = "new test";
$var3 = &$var2;
$var3 = "final test";
print ("var1: $var1, var2: $var2, var3: $var3);
output:
var1: test, var2: final test, var3: final test
Passed by value/reference example:...