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Event listener for when element becomes visible?
I am building a toolbar that is going to be included into a page. the div it is going to be included in will default to display:none . Is there a way i can put an event listener on my toolbar to listen for when it becomes visible so it can initialize? or will I have to pass it a variable from the c...
typeof !== “undefined” vs. != null
I often see JavaScript code which checks for undefined parameters etc. this way:
11 Answers
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Scatterplot with too many points
...m is that there is too much overlap, so that the plot becomes mostly a solid block of black. Is there any way of having a grayscale "cloud" where the darkness of the plot is a function of the number of points in an region? In other words, instead of showing individual points, I want the plot to be a...
What does inverse_of do? What SQL does it generate?
I'm trying to get my head around inverse_of and I do not get it.
8 Answers
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Twitter Bootstrap alert message close and open again
I have a problem with alert messages. It is displayed normally, and I can close it when the user presses x (close), but when the user tries to display it again (for example, click on the button event) then it is not shown. (Moreover, if I print this alert message to console, it is equal to [] .) ...
How to split csv whose columns may contain ,
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CSS transition shorthand with multiple properties?
I can't seem to find the correct syntax for the CSS transition shorthand with multiple properties. This doesn't do anything:
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Create subdomains on the fly with .htaccess (PHP)
I am looking to create a system which on signup will create a subdomain on my website for the users account area.
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Why does .NET use banker's rounding as default?
According to the documentation, the decimal.Round method uses a round-to-even algorithm which is not common for most applications. So I always end up writing a custom function to do the more natural round-half-up algorithm:
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