Function string_repr

Example

import { assertEquals } from "jsr:@std/assert"

assertEquals(
	string_repr("a string"),
	`a string`
)

assertEquals(
	string_repr({ an: "object", with: ["an", "array"] }),
	`{ an: "object", with: [ "an", "array" ] }`
)

assertEquals(
	string_repr(new Map<any, any>([["a", 1], ["b", 2], [{ hello: "world" }, 3]])),
	`Map(3) { "a" => 1, "b" => 2, { hello: "world" } => 3 }`
)

class Person {
	name: string
	age: number

	constructor(name: string, age: number) {
		this.name = name
		this.age = age
	}

	greet() { return `Konichiwa! watashi no namae wa ${this.name}` }
}

assertEquals(
	string_repr(new Person("sekiro", 2000)),
	`Person { name: "sekiro", age: 2000 }`
)

const test_data = {
	num: 123,
	str: "text",
	bool: false,
	nil: null,
	undef: undefined,
	person: new Person("kenshiro", 99),
	func: function example() {},
	anon: () => {},
	arr: [1, "two", { three: 3 }],
	obj: { a: 1, b: { c: 2 }, self: undefined },
	sym: Symbol("sym"),
	bigInt: BigInt(200),
	set: new Set([1, 2, 3, "kakashi", { itachi: "zabuza" }])
}
test_data.obj.self = test_data as any

assertEquals(string_repr(test_data),
	`{ ` +
	`num: 123, ` +
	`str: "text", ` +
	`bool: false, ` +
	`nil: null, ` +
	`undef: undefined, ` +
	`person: Person { name: "kenshiro", age: 99 }, ` +
	`func: [Function: example], ` +
	`anon: [Function: anon], ` +
	`arr: [ 1, "two", { three: 3 } ], ` +
	`obj: { a: 1, b: { c: 2 }, self: [Circular] }, ` +
	`sym: Symbol(sym), ` +
	`bigInt: 200n, ` +
	`set: Set(5) { 1, 2, 3, "kakashi", { itachi: "zabuza" } } ` +
	`}`
)
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