Is there a 'bar' key in the hashmap that has an array as its value with only one item ['foo']? I want to add another item, 'foo1', to the same array. Is the following code the right approach, or is there a simpler way to achieve this?
var map1 = new Map();
map1.set('bar', ['foo']);
var newValues = map1.get("bar");
map1.set('bar' ,newValues.concat('foo1'));
console.log(map1.get('bar')); // ['foo', 'foo1']Creating a simple 2-line example
let myMap = new Map();
myMap.set('bar', ['foo']);
myMap.get('bar').push('foo1');
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