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jquery if div id has children
...children().length should be called instead of size() per jQuery docs here: api.jquery.com/size
– Brian Chavez
May 7 '11 at 5:06
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Changing position of the Dialog on screen android
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'FILL_PARENT' is deprecated. I am on API 21. As by Developer Reference
– fWd82
Sep 27 '16 at 11:28
1
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IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
...d onSaveInstanceState(Bundle outState) {
//No call for super(). Bug on API Level > 11.
}
Don't make the call to super() on the saveInstanceState method. This was messing things up...
This is a known bug in the support package.
If you need to save the instance and add something to your ou...
Adding hours to JavaScript Date object?
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JavaScript itself has terrible Date/Time API's. Nonetheless, you can do this in pure JavaScript:
Date.prototype.addHours = function(h) {
this.setTime(this.getTime() + (h*60*60*1000));
return this;
}
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How to subtract date/time in JavaScript? [duplicate]
...ou are probably better off using moment.js which offers powerful localized APIs. For example, this is what I have in my utils.js:
subtractDates: function(date1, date2) {
return moment.subtract(date1, date2).milliseconds();
},
millisecondsSince: function(dateSince) {
return moment().subtract...
Stop/Close webcam which is opened by navigator.getUserMedia
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EDIT
Since this answer has been originally posted the browser API has changed.
.stop() is no longer available on the stream that gets passed to the callback.
The developer will have to access the tracks that make up the stream (audio or video) and stop each of them individually.
More i...
How to list files in an android directory?
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In addition to all the answers above:
If you are on Android 6.0+ (API Level 23+) you have to explicitly ask for permission to access external storage. Simply having
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
in your manifest won't be enough. You als...
JavaScript - Getting HTML form values
...ailable in Safari, Explorer, or Edge. developer.mozilla.org/en-US/docs/Web/API/FormData
– dave
Oct 11 '17 at 21:08
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How to concatenate two strings in C++?
...h as when you want to pass to some function, then you can do this:
some_c_api(s.c_str(), s.size());
assuming this function is declared as:
some_c_api(char const *input, size_t length);
Explore std::string yourself starting from here:
Documentation of std::string
Hope that helps.
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Zoom in on a point (using scale and translate)
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I'm using the Canvas API, but it doesn't have a direct multiply() API. Instead, I've been doing resetTransform(), then applying the "zoom" translation, scaling, undoing the zoom translation, and then applying the actual desired translation. This ...