Here you go: Summary: recursively create an array of one-property objects, then combine them all with Object.assign. This uses ES6 features including Object.assign or the spread operator, but it should be easy enough to rewrite not to require them. For those who don’t care about the one-line craziness and would prefer to be able to … Read more
If you want to avoid external libraries, you can concisely implement a vanilla version of groupBy() like so: Expand snippet
You can do it like this in both Underscore and Lodash (3.x and 4.x). Run code snippetExpand snippet Original Answer Online Demo Note: Lodash 4.0 onwards, the .pairs function has been renamed to _.toPairs()
You need to load jquery first before bootstrap. Works like charm! quick and easy fix.