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Remove non-utf8 characters from string
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This one worked. I faced the problem when Google Maps API reported the error due to 'non-UTF-8 character' in the API request URL. The culprit was í character in the address field which IS a valid UTF-8 character see table. The morale: do not trust API error messages :)
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Convert pandas dataframe to NumPy array
...Consistency: to_numpy()
In the spirit of better consistency throughout the API, a new method to_numpy has been introduced to extract the underlying NumPy array from DataFrames.
# Setup.
df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]}, index=['a', 'b', 'c'])
df.to_numpy()
array([[1, 4],
[2...
Why use AJAX when WebSockets is available?
...o-exist with existing frameworks and deployed technologies (OAuth, RESTful APIs, proxies, load balancers) then this would be a factor in favor of Comet techniques (for now).
If you don't need the specific benefits that WebSockets provides, then it's probably a better idea to stick with existing tec...
Disable ActiveRecord for Rails 4
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For those using the rails-api gem you may encounter a similar error when using the --skip-active-record flag when doing rails-api new my_api. The current fix (until a new corrected version of the gem is released) is to edit your rails-api gem to have ...
What is the difference between jQuery's mouseout() and mouseleave()?
...ouse leaves the Outer element, but not the Inner element.
Source: http://api.jquery.com/mouseleave/
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In Flux architecture, how do you manage Store lifecycle?
... fisherwebdev's answer but also reflects an approach I use for normalizing API responses.
I made it to document a few approaches I have tried while learning Flux.
I tried to keep it close to real world (pagination, no fake localStorage APIs).
There are a few bits here I was especially interested...
NSOperation vs Grand Central Dispatch
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GCD is a low-level C-based API that enables very simple use of a task-based concurrency model. NSOperation and NSOperationQueue are Objective-C classes that do a similar thing. NSOperation was introduced first, but as of 10.5 and iOS 2, NSOperationQueu...
Why is Java's AbstractList's removeRange() method protected?
...e scenes.†
The OP asks why removeRange is not part of the List public API. The reason is described in Item 40 of Effective Java 2nd ed, and I quote it here:
There are three techniques for shortening overly long parameter lists. One is to break the method up into multiple methods, each of wh...
@RequestParam vs @PathVariable
...3705478: @PathParam is an javax.ws.rs annotation. docs.oracle.com/javaee/7/api/javax/ws/rs/PathParam.html
– Ralph
Apr 5 '18 at 19:06
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Render HTML to an image
...low and even slower if the html contains external links
Option 4: Use an API
ApiFlash (based on chrome)
EvoPDF (has an option for html)
Grabzit
HTML/CSS to Image API
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Pros
Execute Javascript
Near perfect rendering
Fast when caching options are correctly used
Scale is handled by the APIs
P...