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What is the meaning of polyfills in HTML5?

... A polyfill is a browser fallback, made in JavaScript, that allows functionality you expect to work in modern browsers to work in older browsers, e.g., to support canvas (an HTML5 feature) in older browsers. It's sort of an HTML5 technique, since it is used in conjunctio...
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Create table (structure) from existing table

.... If you want to copy the entire structure, you need to generate a Create Script of the table. You can use that script to create a new table with the same structure. You can then also dump the data into the new table if you need to. If you are using Enterprise Manager, just right-click the table ...
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Hook up Raspberry Pi via Ethernet to laptop without router? [closed]

...nd you've now got GUI access to do what you want. In may case it was run scripts in a remote location. In the posters situation, safely shutdown the Pi. Simples Pimples. share | improve this answe...
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use Winmerge inside of Git to file diff

...son of Git branches" for more details. Original difftool by directories script (December 2009) As Seba Illingworth mentions in his answer, a script git-diffall.sh (also put in the path) can do just that: #!/bin/sh git diff --name-only "$@" | while read filename; do git difftool "$@" --no-pr...
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Checking if output of a command contains a certain string in a shell script

I'm writing a shell script, and I'm trying to check if the output of a command contains a certain string. I'm thinking I probably have to use grep, but I'm not sure how. Does anyone know? ...
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Get value when selected ng-option changes

...ed_name=(options|filter:{id:selected_id})[0].name"> </select> <script> angular.module("app",[]) .controller("ctrl",['$scope',function($scope){ $scope.options = [ {id:1, name:'Starbuck'}, {id:2, name:'Appolo'}, {id:3, name:'Saul Tigh'}, {id:4, name:'Adam...
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What's the best strategy for unit-testing database-driven applications?

...at I think would solve some of your problems: Keep the entire schema and scripts for creating it in source control so that anyone can create the current database schema after a check out. In addition, keep sample data in data files that get loaded by part of the build process. As you discover dat...
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Creating temporary files in bash

Are there objectively better ways to create temporary files in bash scripts? 5 Answers ...
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How to convert R Markdown to PDF?

... where I have a copy of pandoc through RStudio, I can use the following: Rscript -e "Sys.setenv(RSTUDIO_PANDOC='/Applications/RStudio.app/Contents/MacOS/pandoc');library(rmarkdown); library(utils); render('input.Rmd', 'pdf_document')" Old Answer (circa 2012) So, a number of people have sugges...
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Disabling and enabling a html input button

... Using Javascript Disabling a html button document.getElementById("Button").disabled = true; Enabling a html button document.getElementById("Button").disabled = false; Demo Here Using jQuery All versions of jQuery prior to 1....