There is no native map to the Object object, but how about this: var myObject = { 'a': 1, 'b': 2, 'c': 3 }; Object.keys(myObject).forEach(function(key ... ... <看更多>

Javascript Nuggets - Object. keys (), Object.values(), Object.entries()Project Based Web Development Courses - https://www.johnsmilga.com ... ... <看更多>

By definition, a Map object holds key-value pairs. Keys are unique in a Map's collection. In other words, a key in a Map object only appears once. ... <看更多>

Map object keys and values into a new object. Contribute to sindresorhus/map-obj development by creating an account on GitHub. ... <看更多>

There are some reasons why I prefer using Map s over plain objects ( {} ) for storing runtime data (caches, etc):. The .size property lets me know how many ... ... <看更多>