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olov/ES6 consts

Last active December 21, 2015 05:18
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ES6 consts
[:~/projects/js] % cat const.js
"use strict"; // required to opt-in ES6 block scope in V8 for now
console.log("const assignment error is caught at parse-time so this doesn't get printed");
const limit = 100;
limit = 200;
console.log(limit);
[:~/projects/js] % node --harmony const.js
/Users/olov/projects/js/const.js:4
limit = 200;
SyntaxError: Assignment to constant variable.
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