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How to pass a user defined argument in scrapy spider
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Alternatively we can use ScrapyD which expose an API where we can pass the start_url and spider name. ScrapyD has api's to stop/start/status/list the spiders.
pip install scrapyd scrapyd-deploy
scrapyd
scrapyd-deploy local -p default
scrapyd-deploy will deploy the spider...
Encode String to UTF-8
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@AhmadHajjar docs.oracle.com/javase/10/docs/api/java/lang/… : "The Java platform uses the UTF-16 representation in char arrays and in the String and StringBuffer classes."
– Maxi Gis
Oct 4 '19 at 14:43
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Android 4.1: How to check notifications are disabled for the application?
...sEnabled(), from support library, to check if notifications are blocked on API 19+. The versions below API 19 will return true (notifications are enabled).
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Turn off autosuggest for EditText?
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API 24/Android 7.0: I replaced android:inputType="textPersonName" with the suggested text but it still displays the suggestion row (with the mic icon).
– Neph
Feb 25 at 14:35
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Show an image preview before upload
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HTML5 comes with File API spec, which allows you to create applications that let the user interact with files locally; That means you can load files and render them in the browser without actually having to upload the files. Part of the File API i...
any tool for java object to object mapping? [closed]
...on based approach to map objects while providing a simple refactoring safe API for handling specific use cases.
MapStruct: MapStruct is a compile-time code generator for bean mappings, resulting in fast (no usage of reflection or similar), dependency-less and type-safe mapping code at runtime.
Orika...
opengl: glFlush() vs. glFinish()
...s left, and the results should be available too all appropriate non-OpenGL APIs (e.g. reads from the framebuffer, screenshots, etc...). Whether that is really what happens is driver-dependent. The specification allows a ton of latitude as to what is legal.
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Difference between “process.stdout.write” and “console.log” in node.js?
...process.stdout.write(d + '\n');
};
Source: http://nodejs.org/docs/v0.3.1/api/process.html#process.stdout
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Dynamically generating a QR code with PHP [closed]
...tion to the QR codes library posted by @abaumg, Google provides a QR Codes API QR Codes APImany thanks to @Toukakoukan for the link update.
To use this , basically:
https://chart.googleapis.com/chart?chs=300x300&cht=qr&chl=http%3A%2F%2Fwww.google.com%2F&choe=UTF-8
300x300 is the siz...
Retrieve a Fragment from a ViewPager
... know the tag creation will never change and your not relying on a private api / method, which is always dangerous.
/**
* @param containerViewId the ViewPager this adapter is being supplied to
* @param id pass in getItemId(position) as this is whats used internally in this class
* @return the ta...