prettyjson/lib/utils.js

Package for formatting JSON data in a coloured YAML-style, perfect for CLI output

'use strict';

/**
 * Creates a string with the same length as `numSpaces` parameter
 **/
exports.indent = function indent(numSpaces) {
  return new Array(numSpaces+1).join(' ');
};

/**
 * Gets the string length of the longer index in a hash
 **/
exports.getMaxIndexLength = function(input) {
  var maxWidth = 0;

  Object.getOwnPropertyNames(input).forEach(function(key) {
    // Skip undefined values.
    if (input[key] === undefined) {
      return;
    }

    maxWidth = Math.max(maxWidth, key.length);
  });
  return maxWidth;
};