Function jsonFormatter

Example: Usage

import { LogRecord } from "@std/log/logger";
import { jsonFormatter } from "@std/log/formatters";
import { LogLevels } from "@std/log/levels";
import { assertEquals } from "@std/assert/equals";

const record = new LogRecord({
  msg: "Hello, world!",
  args: ["foo", "bar"],
  level: LogLevels.INFO,
  loggerName: "example",
});
const formatted = jsonFormatter(record);

assertEquals(
  formatted,
  `{"level":"INFO","datetime":${record.datetime.getTime()},"message":"Hello, world!","args":["foo","bar"]}`,
);
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