Which placeholder polyfill script do you recommend that I use to provide placeholder support in ie7, 8 & 9.  I've seen the following list from the modernizer team and was wondering if anybody here had some mileage with them or any others not...
I'm using browser's native fetch API for network requests. Also I am using the whatwg-fetch polyfill for unsupported browsers.   However I need to retry in case the request fails. Now there is this npm package whatwg-fetch-retry I found, but...
I've been looking at some of the popular console.log() wrappers/polyfills:   Paul Irish's Ben Alman's Craig Patik's   I notice that all of them accept multiple arguments, but they all do something like this:  console.log(arguments);...
I've got an angular 2 app working inside firefox and chrome, not so much inside (sigh) IE. Based on my stack trace, it looks like there is a problem with my System js setup.  Here is the error description that I see inside my web console.  Error:...
After reading the article Removing Babel's Stage Presets by babel, I still not fully understand how to add a proposal from, for example, stage-3 (flatMap) to .babelrc.  As far as I understand, because flatMap can be written in ES5, then I need a...
I try to make a simple web component.  For browser compatibility, I use the NPM package webcomponents.js (version 0.7.23). I run my little code with Polyserve.  My code is on Github: https://github.com/olofweb/Webcomponents   On Chrome (version 55) -...
respond.js or css3-mediaqueries.js ?  The official documentation, especially that of css3-mediaqueries.js, is sparse. Reading on SO, forums and blogs I have summarized these pros and cons.  respond.js  Pros:   More reliable (? recommended by Moderniz...
What is the meaning of polyfills in HTML5? I saw this word in many sites about HTML5, e.g. HTML5-Cross-Browser-Polyfills.     So here we're collecting all the shims, fallbacks, and polyfills   in order to implant HTML5 functionality in browsers t...
What are the options for using the let keyword in javascript. It seems like it would be really useful.  I've seen traceur, but I'm wondering if there are any other options, so I don't have to run entire projects through it.  Is it even po...
I am using ChildNode.remove() and I described by Mozilla I need a polyfill for IE. I am using webpack with the babel-polyfill configured:   "babel-polyfill": "^6.13.0",  "webpack": "^2.4.1",   webpack.config.babel.js:...

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