Anna-Myzukina

//Exercise 1
/*To proceed, write a program that prints "i am okay" to standard output
and "i am so incredibly not okay" to standard error.
 */

console.log('i am okay');
console.error('i am so incredibly not okay');

Anna-Myzukina

#!/usr/bin/env bash

echo "Hello, world!"



#1.touch hello.bash
#2.chmod +x hello.bash
#3. ./hello.bash

Anna-Myzukina

//Exercise 4

      var arg1 = process.argv[2];
      var arg2 = process.argv[3];

      import {PI, sqrt, square} from './Math';
      console.log(PI);
      console.log(sqrt(+arg1));
      console.log(square(+arg2));

Anna-Myzukina

//Exercise 1 Install mongodb from:

1. https://www.mongodb.org/downloads. or sudo apt install mongodb

To verify that mongod is installed, you can try running mongod --version

//Exercise 2 Start mongod on port 27017 with data as the dbpath 1.at first terminal : mkdir data , next cd data , next mongod --port 27017 --dbpath=./data 2.at onother terminal run npm install mongodb

Anna-Myzukina

//Exercise 15
/*Fix this code! The callback should be called with all the users loaded.
The order of the users should match the order of supplied user ids. Because this 
function is asynchronous, we do not care about its return value.
# Arguments
  * userIds: an Array of numeric user ids.
  * load: a Function used to load user objects. Expects a numeric id and a callback. 
  * The callback will be called with the result of loading the user with the specified id 
  * (either a user object or null).
  * done: a Function that expects an Array of user objects (as retrieved from `load`).

Anna-Myzukina

//Exercise 1
/**
 * Make a new directory for your stream-adventure solutions (mkdir stream-adventure and enter it cd ./stream-adventure)
Create a new file called beep_boop.js that uses console.log to output "beep boop".
 */
console.log("beep boop");

Anna-Myzukina

registry = http://localhost:15443/
userconfig = /home/anna/.config/how-to-npm/npmrc

Anna-Myzukina

// Exercise 1 
/**
Create a javascript program that takes the the first command-line argument and
outputs it right after a "Hello " String using ES6 template strings
 */
var arg = process.argv[2];

console.log(`Hello ${arg}`);

Anna-Myzukina

/*Exercise 1
Create an Express.js app that outputs "Hello World!" when somebody goes to /home.The port number will be provided to you by expressworks as the first argument ofthe application, i.e., process.argv[2]
 */

var express = require('express')
var app = express()
app.get('/home', function(req, res) {
  res.end('Hello World!')
})
app.listen(process.argv[2])

Anna-Myzukina

//Exercise 11
/*Export a function that takes a string argument and returns whether the string starts with `cat`, `dog`, or `robot` followed by a number to the end of the string
 */
module.exports = function (str) {
    return /^(cat|dog|robot)\d+$/.test(str);
}