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Grouping functions (tapply, by, aggregate) and the *apply family
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From slide 21 of http://www.slideshare.net/hadley/plyr-one-data-analytic-strategy:
(Hopefully it's clear that apply corresponds to @Hadley's aaply and aggregate corresponds to @Hadley's ddply etc. Slide 20 of the same slideshare will clarify if you don't get it...
What is the meaning of polyfills in HTML5?
.../what-is-a-polyfill/
Here's a comprehensive list of Polyfills and Shims:
https://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-browser-Polyfills
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C++0x lambda capture by value always const?
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Stop Visual Studio from mixing line endings in files
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see http://editorconfig.org and https://docs.microsoft.com/en-us/visualstudio/ide/create-portable-custom-editor-options?view=vs-2017
If it does not exist, add a new file called .editorconfig for your project
manipulate editor config to use your preferred ...
Run JavaScript when an element loses focus
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How to access accelerometer/gyroscope data from Javascript?
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Usefull fallback here: https://developer.mozilla.org/en-US/docs/Web/Events/MozOrientation
function orientationhandler(evt){
// For FF3.6+
if (!evt.gamma && !evt.beta) {
evt.gamma = -(evt.x * (180 / Math.PI));
evt.beta = -(evt...
Default value for field in Django model
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Importing data from a JSON file into R
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If the URL is https, like used for Amazon S3, then use getURL
json <- fromJSON(getURL('https://s3.amazonaws.com/bucket/my.json'))
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ListBox vs. ListView - how to choose for data binding
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How do I measure the execution time of JavaScript code with callbacks?
...libraries:
Available in Node >= 8.5, and should be in Modern Browers
https://developer.mozilla.org/en-US/docs/Web/API/Performance
https://nodejs.org/docs/latest-v8.x/api/perf_hooks.html#
Node 8.5 ~ 9.x (Firefox, Chrome)
// const { performance } = require('perf_hooks'); // enable for nod...