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PHP vs NodeJS comparison table of supported technologies Technology PHP Express JS CMS Magento, WordPress, Opencart, Drupal, Joomla, PrestaShop Apostrophe2 ,  Ghost ,  KeystoneJS , enduro.js,  Pencilblue MVC frameworks Symfony, Laravel, Yii, Codeigniter, Zend, Phalcon, CackePHP Koa JS, Express JS, Sails JS Realtime Ratchet, Wrench, Elephant.io, Socket.io ws, Sockjs, Socket.io REST API RestClient, Guzzle, HTTPFUL Restify, Loopback Scaffolding symfony+, laravel+ , yii+, CackePHP Yeoman HTML templating Twig Blade Latter Smarty Volt Mustache Jade Underscore EJS Handlebars Mustache Embedded js Horizontal scaling implementation Elastic beanstalk, varnish Cluster mode, Amazon Elastic Beanstalk Load balancer support + + Queues + + Multiple drivers support DB, storage + + Full-text search + + Profiling Xdebug, Blackfire, XHProf, XHGui Built in profiler Caching Redis,  Memcache Redis,  Memcache CI support Travis CI, Codeship Travis C...
R Basics  c- combine c(1,2,3,4) - vector(set) of 4 values help.search('input') help.start() apropos("lm") demo() --demonstration example(graphics) -  example on functions c(2,3,4,5)^c(2,3) -- right c(2,3,4)^c(2,3) --- wrong Integer Division %/% Modulo divistion -- %% Maximum --- max() Minimum --- min() sum of values --sum() production of values -- prod() numeric or not -- mode(variable)
Netcdf clip using lat and longitude import xarray as xr ds =xr.open_dataset("") lat_bnds,lon_bnds  = [20.2,25.2] , [81.2,85.5] ds1=ds.sel()
Radial Guage custom comopnent <RadialGauge    minValue={0}     maxValue={360}     majorTicks={["N","NE","E","SE","S","SW","W","NW","N"]} minorTicks={22} ticksAngle={360}     startAngle={180}     strokeTicks={false}     highlights={false}     colorPlate={"#33a"}     colorMajorTicks={"#f5f5f5"}     colorMinorTicks={"#ddd"}     colorNumbers={"#ccc"}     colorNeedle={"rgba(240, 128, 128, 1)"} colorNeedleEnd={"rgba(255, 160, 122, .9)"}     valueBox={false}     valueTextShadow={false}    colorCircleInner={"#fff"}     colorNeedleCircleOuter={"#ccc"}     needle-circle-size="15"     data-needle-circle-outer="false"     data-animation-rule="linear"     data-needle-type="line"     data-needle-start="75"     data-needle-end="99"     data-ne...
svg creation html file  <svg width="60" height="200"> <defs> <linearGradient id="gradient_3" x1="0%" y1="0%" x2="0%" y2="100%" spreadMethod="pad"> <stop offset="0%" stop-color="#2868F1" stop-opacity="1"></stop> <stop offset="50%" stop-color="white" stop-opacity="1"></stop> <stop offset="100%" stop-color="#D1D3D7" stop-opacity="1"></stop> </linearGradient> </defs> <g><rect x="0" y="0" width="60" height="100%" fill="url(#gradient_3)"></rect></g> <g><line x1="0" y1="0" x2="60" y2="0" stroke-width="3" stroke="black"></line></g> <g><circle radius="10" y="0"/...
React APp  creation using webpack https://www.freecodecamp.org/news/part-1-react-app-from-scratch-using-webpack-4-562b1d231e75/ use babel-loader@7 file-loader for image loading css-loader & style-loader
Installing GDAL in windows https://sandbox.idre.ucla.edu/sandbox/tutorials/installing-gdal-for-windows