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Parsing and serializing YAML

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YAML is a widely used data serialization language designed to be easily human readable and writeable.

import { parse, stringify } from "jsr:@std/yaml";
To parse a YAML string, you can use the the standard library's YAML parse function. The value is returned as a JavaScript object.
const text = `
foo: bar
baz:
  - qux
  - quux
`;
const data = parse(text);
console.log(data.foo);
console.log(data.baz.length);
To turn a JavaScript object into a YAML string, you can use the standard library's YAML stringify function.
const obj = {
  hello: "world",
  numbers: [1, 2, 3],
};
const yaml = stringify(obj);
console.log(yaml);
// hello: word
// numbers:
//   - 1
//   - 2
//   - 3

Run this example locally using the Deno CLI:

deno run https://docs.deno.com/by-example/parsing-serializing-yaml.ts

Additional resources: