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Ruby - test for array
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Type checking is for Java. Go ahead and just call count on the variable. Write unit tests to make sure the method works as expected.
– user132447
Mar 21 '12 at 14:55
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When should I use semicolons in SQL Server?
...ed to include a semi-colon prior to a throw in this example: BEGIN ;THROW @Error, 'Invalid FundingID', 2; RETURN END
– Chris Walsh
Feb 24 '16 at 16:35
1
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How to edit log message already committed in Subversion?
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if /I not '%propname%'=='svn:log' goto ERROR_PROPNAME
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:: Only allow modifications to svn:log (no addition/overwrite or deletion)
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Suppressing “is never used” and “is never assigned to” warnings in C#
...do this:
Compile the code as normal, this will add some warnings to your error list in Visual Studio
Switch to the Output window, and the Build output, and hunt for the same warnings
Copy the 4-digit warning code from the relevant message, which should look like this:
C:\Dev\VS.NET\ConsoleAppl...
How to mkdir only if a directory does not already exist?
...st 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.
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How to remove the hash from window.location (URL) with JavaScript without page refresh?
...ng this problem is much more within reach nowadays. The HTML5 History API allows us to manipulate the location bar to display any URL within the current domain.
function removeHash () {
history.pushState("", document.title, window.location.pathname
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Will console.log reduce JavaScript execution performance?
...e script, eg:
var con = console;
and then use con.log("message") or con.error("error message") throughout your code, on production you can simply rewire con in the core location to:
var con = {
log: function() {},
error: function() {},
debug: function() {}
}
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How to find out which processes are using swap space in Linux?
..."" ] && { SORT="$1"; }
[ ! -x `which mktemp` ] && { echo "ERROR: mktemp is not available!"; exit; }
MKTEMP=`which mktemp`;
TMP=`${MKTEMP} -d`;
[ ! -d "${TMP}" ] && { echo "ERROR: unable to create temp dir!"; exit; }
>${TMP}/${SCRIPT_NAME}.pid;
>${TMP}/${SCRIPT_NAME}.k...
LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
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If you get a compiler error about type inference, check two things, (1) are the types the same, and (2) are the column names the same. The names part is a gotcha. This example won't compile even if all columns are varchars join T2 in db.tbl2 on ...
Finding all cycles in a directed graph
How can I find (iterate over) ALL the cycles in a directed graph from/to a given node?
17 Answers
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