What does the dollar prefix ($) mean in Vue.js?
The use of the $ and _ prefixes in Vue are explained here: https://v2.vuejs.org/v2/style-guide/#Private-property-names-essential Specifically in the Detailed Explanation section. _ is for private instance properties: Vue uses the _ prefix to define its own private properties… $ is for public instance properties: As for the $ prefix, its purpose within the Vue ecosystem is …