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Difference between int[] array and int array[]
...I forgot because I never declare more than one variable at a time):
int[] foo, bar; // both are arrays
int foo[], bar; // foo is an array, bar is an int.
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R apply function with multiple parameters
...ction f(var1, var2) in R. Suppose we set var2 = 1 and now I want to apply the function f() to the list L . Basically I want to get a new list L* with the outputs
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sql “LIKE” equivalent in django query
What is the equivalent of this SQL statement in django?
5 Answers
5
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Output first 100 characters in a string
... it also works for strings shorter than 100, for example print 'foo'[:100] (note that len('foo') is 3, so even when foo[100] doesn't work, it does)
– Rodrigo Laguna
Mar 28 '18 at 19:40
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Windows batch: call more than one command in a FOR loop?
...k the parentheses are unnecessary. for %i in (1 2 3) do echo %i & echo foo prints what I'd expect: "1", "foo", "2", "foo", "3", "foo" (on separate lines).
– bk1e
Feb 13 '10 at 18:58
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what is the unsigned datatype?
I've seen this unsigned "typeless" type used a couple of times, but never seen an explanation for it. I suppose there's a corresponding signed type. Here's an example:
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Implements vs extends: When to use? What's the difference?
Please explain in an easy to understand language or a link to some article.
18 Answers
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Truncate a string straight JavaScript
....substring(0, Math.min(length,pathname.length));
document.getElementById("foo").innerHTML =
"<a href='" + pathname +"'>" + trimmedPathname + "</a>"
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Differences between fork and exec
...cture
int cpid = fork( );
if (cpid = = 0)
{
//child code
exec(foo);
exit(0);
}
//parent code
wait(cpid);
// end
(after exec call unix kernel clears the child process text,data,stack and fills with foo process related text/data)
thus child process is with different code (foo'...
Can a shell script set environment variables of the calling shell? [duplicate]
...ve about ptrace, and the same may go for other distros as well).
$ cat setfoo
#! /bin/bash
gdb /proc/${PPID}/exe ${PPID} <<END >/dev/null
call setenv("foo", "bar", 0)
END
$ echo $foo
$ ./setfoo
$ echo $foo
bar
s...