an open-source JavaScript library for mobile-friendly interactive maps Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. Weighing just about 42 KB of JS, it has all the mapping features most developers ever need. Leaflet is designed with simplicity, performance and usability in mind. It works efficiently across all major desktop and mobile platforms, can b
Check out my book (free online): “Exploring ES6”. Updated version of this blog post: chapter “Maps and Sets”. Among others, the following four data structures are new in ECMAScript 6: Map, WeakMap, Set and WeakSet. This blog post explains how they work. Map # JavaScript has always had a very spartan standard library. Sorely missing was a data structure for mapping values to values. The best you c
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