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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...ue of something that has been drawn already. Maybe this wasn't part of the api when this question was asked.
given 2d context c.
function reduceAlpha(x, y, w, h, dA) {
var screenData = c.getImageData(x, y, w, h);
for(let i = 3; i < screenData.data.length; i+=4){
screenData.data[i] -...
Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c
...ates GDPR and likely requires revision.
Google Analytics has a new set of APIs to assist with compliance with a cookie opt-out. Here's the documentation, and here's their help docs.
There has been some ambiguity as to whether the EU Cookie Regulations (as implemented in member countries) require ...
What is the best way to deal with the NSDateFormatter locale “feechur”?
...mat set and locale forced to en_US_POSIX for receiving dates (from servers/APIs).
Then you should be using a different NSDateFormatter for the UI which you will set the timeStyle/dateStyle properties - this way you're not having an explicit dateFormat set by yourself, thus falsely assuming that for...
Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
..., I still felt compelled to update this to leverage modern conventions and API, notably:
Use NSURLSession rather than dispatching -[NSData contentsOfURL:] to a background queue;
Use dequeueReusableCellWithIdentifier:forIndexPath: rather than dequeueReusableCellWithIdentifier: (but make sure to use...
What is the difference between related SQLite data-types like INT, INTEGER, SMALLINT and TINYINT?
... you place in small applications to be accessed only via a database access API in code. Solving problems in SQLite is usually a matter of figuring out how they want you to do it.
– J. Polfer
May 3 '10 at 22:25
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How to reset Jenkins security settings from the command line?
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I am using El-Capitan and config.xml couldn't be found in the location
– Durai Amuthan.H
Mar 8 '16 at 10:52
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When to use an interface instead of an abstract class and vice versa?
...er in the chain who is adding implementation to a project, or extending an API.
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Can multiple different HTML elements have the same ID if they're different elements?
...e to work with these elements from JS, pass them as selectors to libraries/APIs/Flash, etc.
– mrooney
May 13 '13 at 20:55
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Counting the number of option tags in a select tag in jQuery
...moving the braces $('#input1 :selected').length; supporting documentation api.jquery.com/length
– Leonard Kakande
Mar 1 '16 at 6:03
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Redirecting to a relative URL in JavaScript
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https://developer.mozilla.org/en-US/docs/Web/API/Location/assign
window.location.assign("../"); // one level up
window.location.assign("/path"); // relative to domain
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