> The browsers struggled with this for years.

Arguably, they still do.

    function f() {
      var some = [];
      while(some.length < 1e6) {
        some.push(some.length);
      }
      function g() { some; }
      return function() {};
    }

    var a = [];
    var interval = setInterval(function() {
       var len = a.push(f());
       if(len >= 500) {
         clearInterval(interval);
       }
     }, 10);

uses a very large amount of memory in all browsers.

     function f() {
       var some = [];
        while(some.length < 1e6) {
          some.push(some.length);
        }
         function g() { some; }
     }

     var a = [];
     var interval = setInterval(function() {
       var len = a.push(f());
       if(len >= 500) {
          clearInterval(interval);
       }
     }, 10);

uses very little.

https://stackoverflow.com/questions/19798803/how-javascript-...

https://blog.meteor.com/an-interesting-kind-of-javascript-me...