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notifyDataSetChanged example
...tion.)
Create your own class derived from BaseAdapter and ListAdapter that allows changing of the underlying List data structure.
Use the notifyDataSetChanged() every time the list is updated. To call it on the UI-Thread, use the runOnUiThread() of Activity.
Then, notifyDataSetChanged() will work.
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React ignores 'for' attribute of the label element
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The for attribute is called htmlFor for consistency with the DOM property API. If you're using the development build of React, you should have seen a warning in your console about this.
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What is the best way to profile javascript execution? [closed]
...e building a lot of javascript code and you want to determine what are actually the bottlenecks in the code. At first I want to see profile stats of every javascript function and execution time. Next would be including DOM functions. This combined with actions that slows things down like operation o...
How to append to a file in Node?
...s, you can use appendFile, which creates a new file handle each time it's called:
Asynchronously:
const fs = require('fs');
fs.appendFile('message.txt', 'data to append', function (err) {
if (err) throw err;
console.log('Saved!');
});
Synchronously:
const fs = require('fs');
fs.appendFile...
Is there anything like .NET's NotImplementedException in Java?
...wered Feb 24 '10 at 20:48
Ravi WallauRavi Wallau
9,64722 gold badges2222 silver badges3333 bronze badges
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How to get the children of the $(this) selector?
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The jQuery constructor accepts a 2nd parameter called context which can be used to override the context of the selection.
jQuery("img", this);
Which is the same as using .find() like this:
jQuery(this).find("img");
If the imgs you desire are only direct descendants ...
Detect application heap size in Android
How do you programmatically detect the application heap size available to an Android app?
9 Answers
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How to print a number with commas as thousands separators in JavaScript
... console.log(`${failures} test(s) failed`);
} else {
console.log("All tests passed");
}
.as-console-wrapper {
max-height: 100% !important;
}
The regex uses 2 lookahead assertions:
a positive one to look for any point in the string that has a multiple of 3 digits in a row...
Why would you ever implement finalize()?
...uestions on finalize() and find it kind of bewildering that no one has really made it plain that finalize() is an unreliable way to clean up resources. I saw someone comment that they use it to clean up Connections, which is really scary since the only way to come as close to a guarantee that a C...
Fast and responsive interactive charts/graphs: SVG, Canvas, other?
...ing to choose the right technology to use for updating a project that basically renders thousands of points in a zoomable, pannable graph. The current implementation, using Protovis, is underperformant. Check it out here:
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