“...I've been working since 2008 with Ruby / Ruby on Rails, love a bit of Elixir / Phoenix and learning Rust. I also poke through other people's code and make PRs for OpenSource Ruby projects that sometimes make it. Currently working for InPay...”

Rob Lacey
Senior Software Engineer, UK

Porting Ruby to JS.

module Rack
  module Utils
    def append_to_query_string(url, params = {})
      base, query = url.split('?')
      params = parse_query(query).merge(params.stringify_keys)
      params = params.sort_by { |k, _v| k.to_s }.to_h
      query = build_query(params)
      [base, query].reject(&:blank?).join('?')
    end
    module_function :append_to_query_string
  end
end
window.BLAHUtils = {
  isPresent: function(object) {
    return object != undefined &&  object.toString().trim() !== ''
  },
  presense: function(object) {
    return this.isPresent(object) ? object : null
  },
  appendToQueryString: function(url, params = {}) {
    [base, query] = url.split('?')
    params = {
      ...this.parseQuery(query),
      ...params
    }
    query = this.buildQuery(params)
    return [base, query].filter(v => this.isPresent(v)).join('?')
  },
  parseQuery: function(query) {
    if (!this.isPresent(query)) {
      return {}
    }
    return query.split('&').reduce((h, pair) => {
      [k, v] = pair.split('=')
      h[k] = decodeURIComponent(v)
      return h
    }, {})
  },
  buildQuery: function(params) {
    return Object.entries(params).map(([k, v]) => {
      return [k, encodeURIComponent(v)].join('=')
    }).join('&')
  }
}
GPK of the Day Wrappin' RUTH