npm:bufx | Skypack

README

The bufx library contains various utility functions that read and write line-oriented string buffers. These functions are particularly useful for emitting output a bit at a time, and then writing them or printing them to the console. JSON, YAML, and JavaScript are supported. You can split your output into multiple channels going to separate buffers, or work with one default buffer. Please refer to the bufx.js source file for details about function arguments.

Function name	What it does
clearBuf	Clear a buffer
emit	Emit a string to a buffer
emitJs	Emit a JavaScript string to a buffer with formatting
emitJson	Emit an object to a buffer as compact JSON
emitLine	Emit a string to a buffer terminated by a newline
emitPrettyJson	Emit an object to a buffer as formatted JSON
emitYaml	Emit an object to a buffer as YAML
getBuf	Get buffer contents as a string
lines	Split a string into lines that may have Windows or Unix line endings
loadYaml	Parse a YAML string into an object
num	Numeric value of a string or number
open	Open a buffer for writing
pr	Print a string to the console
print	Print a string to the console
printa	Print an array
printBuf	Print a buffer to the console
printJson	Print an array or object as JSON
printYaml	Print an array or object as YAML
printu	Print a sorted, unique array
read	Read a UTF-8 file into a string
readYaml	Read an array or object from a YAML file
sorta	alphanumeric sort
sortn	numeric sort
sortu	sort -u equivalent
write	Write a string to a UTF-8 file
writeBuf	Write a buffer to a file
writeJson	Write an array or object as JSON to a file
writeYaml	Write an array or object as YAML to a file

This example reads a JSON file and prints a formatted version to the console.

const B = require('bufx')
const pr = B.pr
let pathname = process.argv[2]
if (!pathname) {
  pr('usage: pretty-json js-file')
  process.exit()
}
let input = B.read(pathname)
let o = eval(input)
B.emitPrettyJson(o)
B.printBuf()

Usage no npm install needed!

README