RunKit + 
Try any Node.js package right in your browser
This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including formik-mui. Try it out:
require("@emotion/react/package.json"); // @emotion/react is a peer dependency.
require("@emotion/styled/package.json"); // @emotion/styled is a peer dependency.
require("@mui/material/package.json"); // @mui/material is a peer dependency.
require("formik/package.json"); // formik is a peer dependency.
require("react/package.json"); // react is a peer dependency.
require("tiny-warning/package.json"); // tiny-warning is a peer dependency.
var formikMui = require("formik-mui")
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require()any package directly from npm- use arrow functions, classes, template strings, and most of ES6
awaitany promise instead of using callbacks (example)- create your own embedded node.js snippets
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