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Filter dict to contain only certain keys?
...ce this is a generator expression, it processes one item at a time, and it doesn't looks through all items of old_dict.
Removing everything in-place:
unwanted = set(keys) - set(your_dict)
for unwanted_key in unwanted: del your_dict[unwanted_key]
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Capturing mobile phone traffic on Wireshark
... If you are interested in setting up a rogue access point on Windows 7 and above and capture packets using Wireshark, have a look at the steps I put together at mohit.io/blog/… This will work for any device that supports WiFi (Android, iOS, Wii, XBox, etc)
– mohit...
Fit Image in ImageButton in Android
...However, it is much easier to set and preview in xml in my opinion.
Also, do not use sp for anything other than text size, it is scaled depending on the text size preference the user sets, so your sp dimensions will be larger than your intended if the user has a "large" text setting. Use dp instead...
How to check that an object is empty in PHP?
... then check if it is empty or not
$arr = (array)$obj;
if (!$arr) {
// do stuff
}
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Angular - ui-router get previous state
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ui-router doesn't track the previous state once it transitions, but the event $stateChangeSuccess is broadcast on the $rootScope when the state changes.
You should be able to catch the prior state from that event (from is the state yo...
Java time-based map/cache with expiring keys [closed]
Do any of you know of a Java Map or similar standard data store that automatically purges entries after a given timeout? This means aging, where the old expired entries “age-out” automatically.
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Resource interpreted as Document but transferred with MIME type application/zip
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You can specify the HTML5 download attribute in your <a> tag.
<a href="http://example.com/archive.zip" download>Export</a>
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#attr-download
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How to get POSTed JSON in Flask?
... a simple API using Flask, in which I now want to read some POSTed JSON. I do the POST with the Postman Chrome extension, and the JSON I POST is simply {"text":"lalala"} . I try to read the JSON using the following method:
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如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升
...选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen
How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about accuracy, your best bet is to test out a couple different ones (making sure to try different parameters ...
如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注IT技能提升
...选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen
How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about accuracy, your best bet is to test out a couple different ones (making sure to try different parameters ...