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Most efficient T-SQL way to pad a varchar on the left to a certain length?
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This is simply an inefficient use of SQL, no matter how you do it.
perhaps something like
right('XXXXXXXXXXXX'+ rtrim(@str), @n)
where X is your padding character and @n is the number of characters in the resulting string (assuming you need the padding because you are dealing with ...
How to put a delay on AngularJS instant search?
...rformance issue that I can't seem to address. I have an instant search but it's somewhat laggy, since it starts searching on each keyup() .
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Refresh image with a new one at the same url
I am accessing a link on my site that will provide a new image each time it is accessed.
19 Answers
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How to implement WiX installer upgrade?
...f using your own.
For example, we use this code to do automatic upgrades. It prevents downgrades, giving a localised error message, and also prevents upgrading an already existing identical version (i.e. only lower versions are upgraded):
<MajorUpgrade
AllowDowngrades="no" DowngradeErrorMes...
What would cause an algorithm to have O(log n) complexity?
My knowledge of big-O is limited, and when log terms show up in the equation it throws me off even more.
6 Answers
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Appending HTML string to the DOM
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Use insertAdjacentHTML if it's available, otherwise use some sort of fallback. insertAdjacentHTML is supported in all current browsers.
div.insertAdjacentHTML( 'beforeend', str );
Live demo: http://jsfiddle.net/euQ5n/
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Check if a Bash array contains a value
...advantage of not needing to loop over all the elements (at least not explicitly). But since array_to_string_internal() in array.c still loops over array elements and concatenates them into a string, it's probably not more efficient than the looping solutions proposed, but it's more readable.
if [[...
How to break a line of chained methods in Python?
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You could use additional parenthesis:
subkeyword = (
Session.query(Subkeyword.subkeyword_id, Subkeyword.subkeyword_word)
.filter_by(subkeyword_company_id=self.e_company_id)
.filter_by(subkeyword_word=subkeyword_word)
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How do I invoke a Java method when given the method name as a string?
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Coding from the hip, it would be something like:
java.lang.reflect.Method method;
try {
method = obj.getClass().getMethod(methodName, param1.class, param2.class, ..);
} catch (SecurityException e) { ... }
catch (NoSuchMethodException e) { .....
How to delete an object by id with entity framework
It seems to me that I have to retrieve an object before I delete it with entity framework like below
9 Answers
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