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Add a column to a table, if it does not already exist
I want to write a query for MS SQL Server that adds a column into a table. But I don't want any error display, when I run/execute the following query.
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Deep copy of a dict in python
I would like to make a deep copy of a dict in python. Unfortunately the .deepcopy() method doesn't exist for the dict . How do I do that?
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Determining whether jQuery has not found any element
I'm using jQuery's selectors, especially id selector:
4 Answers
4
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Run a callback only if an attribute has changed in Rails
I have the following association in my app:
3 Answers
3
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Getting the parent div of element
This should be really simple but I'm having trouble with it. How do I get a parent div of a child element?
7 Answers
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input type=file show only button
Is there a way to style (or script) <input type=file /> element to have visible only "Browse" button without text field?
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Parse JSON in TSQL
Is it possible to parse JSON in TSQL ?
9 Answers
9
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Using “Object.create” instead of “new”
Javascript 1.9.3 / ECMAScript 5 introduces Object.create , which Douglas Crockford amongst others has been advocating for a long time. How do I replace new in the code below with Object.create ?
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How to clear all s’ contents inside a parent ?
...nswered Nov 9 '09 at 16:05
QuentinQuentin
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setTimeout or setInterval?
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They essentially try to do the same thing, but the setInterval approach will be more accurate than the setTimeout approach, since setTimeout waits 1000ms, runs the function and then sets another timeout. So the wait period is actually a bit more than 1000ms (or a...