Sometimes, we want to create a hash or dictionary object in JavaScript.

In this article, we’ll look at how to create a hash or dictionary object in JavaScript.

How to create a hash or dictionary object in JavaScript?

To create a hash or dictionary object in JavaScript, we can create a plain object.

For instance, we write

const a = {};
a["key1"] = "value1";
a["key2"] = "value2";

to create object a.

Then we add properties to it with

a["key1"] = "value1";
a["key2"] = "value2";

The property names are in the square brackets and the values are after the = sign.

Conclusion

To create a hash or dictionary object in JavaScript, we can create a plain object.