lazer

Lazer is a utility for printing to the console using a fluent API. Written in TypeScript and compatible with Deno and Node.js runtimes.

Description

Lazer helps you build, format and print complex messages to the console using an expressive fluent API.

Usage

Simple Example

import { lazer } from "https://deno.land/x/lazer/mod.ts"

lazer()
    .print("Hello,")
    .print_space()
    .print_green("Green World")
    .print_ln("!")
$ deno run example.ts
Hello, Green World!

Complex Example

import { lazer } from "https://deno.land/x/lazer/mod.ts"

const remoteAddr = "127.0.0.1";
const method = "GET";
const path = "/a/really/really/really/really/really/really/long/path/here";
const status = 200;
const time_ms = 20;
const size_bytes_string = "1.10kB";

lazer()
    .print('[').print_utc_time().print(']')
    .print_space().print("-").print_space()
    .print_pad_right(remoteAddr, 15, '_')
    .print_space(2)
    .print_pad_right(method, 4, '_')
    .print_space(2)
    .print_pad_right(path, 20, "_")
    .print_space(2)
    .if(status >= 200 && status < 300)
        .print_green(status)
    .if(status >= 300 && status < 400)
        .print_yellow(status)
    .if(status >= 400)
        .print_red(status)
    .end()
    .print_space(2)
    .print_pad_right(`${time_ms}ms`, 6, "_")
    .print_space(2)
    .print_ln(size_bytes_string);
$ deno run example.ts
[Fri, 01 Jan 2021 00:00:00 GMT] - 127.0.0.1______  GET_  /a/really/really/+42  200  20ms__  1.10kB

Supported Platforms

Deno