You could check with the result of the first check. This is an exclusive OR check. // typeof inverse === ‘boolean’ function handleDirection(src) { if (src === ‘left’ === inverse) { tracker–; } else { tracker++; } } The check evaluates the expression in this order (src === ‘left’) === inverse: src === ‘left’ === … Read more
There is some support for conditional compilation in XAML. It’s not the same as in C#, code, though. The trick is to use AlternateContent with Requires against something flagged Ignorable. By doing this, you can actually have portions of your xaml unavailable based on conditions, and turn on or off.
It seems this feature has been included: 0099-conditionclauses.md Try this: if let errorValue = error, errorValue.code == ErrorNotExist { }
For bash, you can use the line: exec &>/dev/null This will direct all stdout and stderr to /dev/null from that point on. It uses the non-argument version of exec. Normally, something like exec xyzzy would replace the program in the current process with a new program but you can use this non-argument version to simply … Read more
You’re right – “the conditionals are getting pushed up to the top of the chain” – but there’s no “just” about it. It’s very powerful. As @thkala says, you just make the choice once; from there on out, the object knows how to go about its business. The approach you describe – BaseAction, ViewAction, and … Read more
Have to recomment the Exploring Expect book for all expect programmers — invaluable. I’ve rewritten your code: (untested) proc login {user pass} { expect “login:” send “$user\r” expect “password:” send “$pass\r” } set username spongebob set passwords {squarepants rhombuspants} set index 0 spawn telnet 192.168.40.100 login $username [lindex $passwords $index] expect { “login incorrect” { … Read more
You could use an outer join: select * from USER u left outer join EMPLOYEE e ON u.user_id = e.user_id left outer join STUDENT s ON u.user_id = s.user_id where s.user_id is not null or e.user_id is not null alternatively (if you’re not interested in the data from the EMPLOYEE or STUDENT table) select * … Read more
You can’t do that with a LINQ joins – LINQ only supports equijoins. However, you can do this: var query = from e in entity.M_Employee from p in entity.M_Position where e.PostionId >= p.PositionId select p; Or a slightly alternative but equivalent approach: var query = entity.M_Employee .SelectMany(e => entity.M_Position .Where(p => e.PostionId >= p.PositionId));
This solution takes advantage of numpy.median: import numpy as np foo_array = [38,26,14,55,31,0,15,8,0,0,0,18,40,27,3,19,0,49,29,21,5,38,29,17,16] foo = np.array(foo_array) # Compute the median of the non-zero elements m = np.median(foo[foo > 0]) # Assign the median to the zero elements foo[foo == 0] = m Just a note of caution, the median for your array (with no zeroes) … Read more