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Shell Timer Function

This guide explains how to create a timer function in the shell/iterm/Terminal using Bash scripting. The function allows you to start a countdown timer with an optional duration. When the timer ends, it plays a sound and announces the end of the timer.

Installation

To use the timer function, follow these steps:

1. Ensure you have Homebrew installed on your macOS.
2. Open the terminal and run the following command to install the required tool:

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📝 Code Sharing and Management with GitHub

🖥️ For Windows:

1. Launch your preferred web browser.

2. Visit GitHub.

3. In this class, we will be sharing code using repositories on GitHub.

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• Set up php-mysql sever on Raspberry pi
  • Update your Pi apt-get
  • Install Apache
  • Install PHP
  • Change directory to Public Html and Grant ownership to pi user
  • Install MySQL
  • Create User Query
  • Grant User Permissions
• Install PHPMyAdmin

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Table of Contents

=================

• CFScript documentation
  • Comments
  • Statements
  • Variables
  • Operators
    • Decision
    • Arithemetic
• Increment/decrement

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0.0.1 CFML in 30 mins

0.0.2. Two syntax

• tag based <cfoutput> #somevar# </cfoutput>
• script based <cfscript> writeoutput("sada") </cfscript>

0.0.3. Commentsstart

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Colorful JSON in HTML

JSON can very easily be translated into JavaScript. JavaScript can be used to make HTML in your web pages.

HTML

<pre><code id=account></code></pre>
<pre><code id=planets></code></pre>

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Get postman to automatically generate an access token and set up your host and make any request

Changes based on request and response

• Change host to your 'host'
• Your access token key in response maybe different could vary from being acessToken, token, access_token and so on, read accordingly and change the conde where ever access_toekn is being called
• Same for expires in

pm.collectionVariables.set("host", "https://reqbin.com/echo/post/json");
const authTokenReq = {
  url: 'https://reqbin.com/echo/post/json',

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Two Sums

Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.

You may assume that each input would have exactly one solution, and you may not use the same element twice.

You can return the answer in any order.

Example

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ES6 Arrow function.

This in JS

• much like objects functions have their own property, this being one of them
• this always holds the reference to a single object, that defines the current line of code’s execution context.
• functions in JS are invoked in following manner 1.Function invocation - THIS with function invocation. - calling the function --- something() - this inside the something() function has value of the global objects (window object in browser environment).
• 'use strict' the default value of this, for any function object is set to undefined instead of the global object.

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SQL vs No SQL

SQL

• Database (keywords like select and from, insert update delete)
• store-> pre defined table values and column (table)
• row or record
• name column
• relational database (user order related by id and product )
• all record adhere to schema and need to be normalized
• one to one, many to many