@naturalcycles/js-lib
Version:
Standard library for universal (browser + Node.js) javascript
68 lines (67 loc) • 2.35 kB
TypeScript
import type { Reviver } from '../types.js';
/**
* Allows to set Global "stringifyFunction" that will be used to "pretty-print" objects
* in various cases.
*
* Used, for example, by _stringify() to pretty-print objects/arrays.
*
* Defaults to _safeJsonStringify.
*
* Node.js project can set it to _inspect, which allows to use `util.inspect`
* as pretty-printing function.
*
* It's recommended that this function is circular-reference-safe.
*/
export declare function setGlobalStringifyFunction(fn: JsonStringifyFunction): void;
export type JsonStringifyFunction = (obj: any, reviver?: Reviver, space?: number) => string;
export interface StringifyOptions {
/**
* @default 10_000
* Default limit is less than in Node, cause it's likely to be used e.g in Browser alert()
*/
maxLen?: number;
/**
* Set to true to print Error.stack instead of just Error.message.
*
* @default false
*/
includeErrorStack?: boolean;
/**
* Set to false to skip including Error.cause.
*
* @default true
*/
includeErrorCause?: boolean;
/**
* Set to true to include Error.data.
*
* @default false
*/
includeErrorData?: boolean;
/**
* Allows to pass custom "stringify function".
* E.g in Node.js you can pass `util.inspect` instead.
*
* Defaults to `globalStringifyFunction`, which defaults to `_safeJsonStringify`
*/
stringifyFn?: JsonStringifyFunction;
}
/**
* Inspired by `_inspect` from nodejs-lib, which is based on util.inpect that is not available in the Browser.
* Potentially can do this (with extra 2Kb gz size): https://github.com/deecewan/browser-util-inspect
*
* Transforms ANY to human-readable string (via JSON.stringify pretty).
* Safe (no error throwing).
*
* Correctly prints Errors, AppErrors, ErrorObjects: error.message + \n + _stringify(error.data)
*
* Enforces max length (default to 1000, pass 0 to skip it).
*
* Logs numbers as-is, e.g: `6`.
* Logs strings as-is (without single quotes around, unlike default util.inspect behavior).
* Otherwise - just uses JSON.stringify().
*
* Returns 'empty_string' if empty string is passed.
* Returns 'undefined' if undefined is passed (default util.inspect behavior).
*/
export declare function _stringify(obj: any, opt?: StringifyOptions): string;