kermit-klein

var foo = 1;
function bar() {
  if (!foo) {
	 var foo = 10;
	 }
  alert(foo);
}
bar();

kermit-klein

var printLastName;
printLastName = function() {
console.log("McClane")
}
var printFirstName;  // undefined


printLastName()  // "McClane"
printFirstName() // Uncaught TypeError: printFirstName is not a function

kermit-klein

printLastName()  // "McClane"
printFirstName() // Uncaught TypeError: printFirstName is not a function

function printLastName() {
 console.log("McClane")
}

var printFirstName = function() {
 console.log("John")
}

kermit-klein

#!/usr/bin/env ruby
require "./lib/check_parans/cli"

CheckParans::CLI.start

kermit-klein

require 'thor'
require 'CheckParans'
module CheckParans
  class CLI < Thor
    desc "check_parans", "Determines if parenthesis are valid"
    def check_parans(string)
      puts CheckParans.valid_parentheses(string)
    end
  end
end

kermit-klein

require 'CheckParans'

our_test_code_1 = 'const result = array.map((element)=>element*2)'
our_test_code_2 = 'const result = array.map((element)=>element*2))'

CheckParans.valid_parentheses(our_test_code_1)
CheckParans.valid_parentheses(our_test_code_2)

kermit-klein

module CheckParans
    def self.valid_parentheses(string)
        only_parants = string.scan(/([()])/)
        if only_parants.empty?
          true
        elsif only_parants.length == 1
          false
        end
        k = false
        until k == true

kermit-klein

RSpec.describe CheckParans do
  it "has a version number" do
    expect(CheckParans::VERSION).not_to be nil
  end
  it "gives true when parentheses are valid" do
    expect(CheckParans.valid_parentheses('((sdf)())')).to eql(true)
  end
  it "gives false when parentheses are invalid" do
    expect(CheckParans.valid_parentheses('(sdfs')).to eql(false)
  end

kermit-klein

require_relative 'lib/check_parans/version'

Gem::Specification.new do |spec|
  spec.name          = "check_parans"
  spec.version       = CheckParans::VERSION
  spec.authors       = ["yourName"]
  spec.email         = ["yourEmail@gmail.com"]

  spec.summary       = "This is a test gem"
  spec.description   = "This gem checks parenthesis validity"

kermit-klein

require_relative 'lib/CheckParans/version'

Gem::Specification.new do |spec|
  spec.name          = "CheckParans"
  spec.version       = CheckParans::VERSION
  spec.authors       = ["yourName"]
  spec.email         = ["yourEmail@gmail.com"]

  spec.summary       = %q{TODO: Write a short summary, because RubyGems requires one.}
  spec.description   = %q{TODO: Write a longer description or delete this line.}