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How do you automatically set the focus to a textbox when a web page loads?
...").focus();
};
though keep in mind that this will replace other on load handlers, so look up addLoadEvent() in google for a safe way to append onload handlers rather than replacing.
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What is cardinality in MySQL?
...ow.
Cardinality is a property which affects the ability to cluster, sort and search data. It is therefore an important measurement for the query planners in DBs, it is a heuristic which they can use to choose the best plans.
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Debug code-first Entity Framework migration codes
I'm using Entity Framework code first in my website and I'm just wondering if there is any way to debug the migration codes. You know, like setting breakpoints and stuff like this.
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Wait for page load in Selenium
...if your code executes too fast the previous page might not be unloaded yet and it will return true even though you are still on the old page. What you need to do is wait for the current page to unload and then call your above code. A way to detect page unload is to get a webelement on the current pa...
Select where count of one field is greater than one
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Needs a GROUP BY surely (unless this is some MySQL non standard thing)?
– Martin Smith
Sep 14 '10 at 15:47
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Purge Kafka Topic
...t>:2181 --alter --topic <topic name> --config retention.ms=1000
And in newer Kafka releases, you can also do it with kafka-configs --entity-type topics
kafka-configs.sh --zookeeper <zkhost>:2181 --entity-type topics --alter --entity-name <topic name> --add-config retention.ms...
IOS: create a UIImage or UIImageView with rounded corners
...or an UIImageView with rounded corners? Because I want take an UIImage and show it inside an UIImageView , but I don't know how to do it.
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Git Cherry-pick vs Merge Workflow
Assuming I am the maintainer of a repo, and I want to pull in changes from a contributor, there are a few possible workflows:
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How to change position of Toast in Android?
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From the documentation,
Positioning your Toast
A standard toast notification appears near the bottom of the screen,
centered horizontally. You can change this position with the
setGravity(int, int, int) method. This accepts three parameters: a
Gravity constant, an x-pos...
How to detect escape key press with pure JS or jQuery?
How to detect escape key press in IE, Firefox and Chrome?
Below code works in IE and alerts 27 , but in Firefox it alerts 0
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