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How to check if an app is installed from a web-page on an iPhone?
... a specified page, like this:
setTimeout(function () { window.location = "https://itunes.apple.com/appdir"; }, 25);
window.location = "appname://";
If the second line of code gives a result then the first row is never executed.
Hope this helps!
Similar question:
iPhone browser: Checking if iP...
Why does C++ require a user-provided default constructor to default-construct a const object?
...'t defined user-defined constructor. Compile it. It will compile:
http://www.ideone.com/h7TsA
And comment the virtual function, then it gives error, as expected:
http://www.ideone.com/SWk7B
Well, I think, you misunderstood the passage. It first says this (§8.5/9):
If no initializer is...
What's the valid way to include an image with no src?
... of the current page to be used, preventing "insecure content" warnings in HTTPS pages. Skipping the host name isn't necessary, but makes it shorter. Finally, a port of :0 ensures that a server request can't be made (it isn't a valid port, according to the spec).
This is the only URL which I foun...
Moving and vanishing lines of code; trouble with Eclipse's XML Editor
... fix is now available in ADT 21 Preview 9, posted a few minutes ago, here: https://android-review.googlesource.com/#/c/44936/1
The reason you get weird visual artifacts is that if a file contains broken DOS line endings (multiple carriage returns without a newline for each carriage return), Eclipse...
Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]
...ngs are not supported yet, but it's fixed.
Multipart Requests (Solution: https://github.com/vinaysshenoy/enhanced-volley)
status code 201 is taken as an error, Status code from 200 to 207 are successful responses now.(Fixed: https://github.com/Vinayrraj/CustomVolley)
Update: in latest release of...
How to return multiple lines JSX in another return statement in React?
...g an array is apparently allowed again, as long as each element has a key: https://facebook.github.io/react/blog/2017/09/26/react-v16.0.html#new-render-return-types-fragments-and-strings
EDIT: React 16.2 lets you surround a list of elements with <Fragment>…</Fragment> or even <>...
Sort JavaScript object by key
...estObj[c], a)
// initial value for reduce.
,{}
);
Docs for reduce: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce
Why use parenthesis on JavaScript return statements: http://jamesknelson.com/javascript-return-parenthesis/
Why Sorting is a bi...
Can Retrofit with OKHttp use cache data when offline
...d();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl("https://api.backend.com")
.client(httpClient)
.addConverterFactory(GsonConverterFactory.create())
.build();
backendApi = retrofit.create(BackendApi.class);
}
private static final Inte...
Running single test from unittest.TestCase via command line
...m unittest testMyCase.MyCase.testItIsHot
Python3 documentation for this: https://docs.python.org/3/library/unittest.html#command-line-interface
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Generate a Hash from string in Javascript
...neral I would recommend murmur3.
See here for a JavaScript implementation:
https://github.com/garycourt/murmurhash-js
If input strings are short and performance is more important than distribution quality, use DJB2 (as proposed by the accepted answer by esmiralha).
If quality and small code size are...