Yusuf Shakeel: April 2020

Saturday, April 25, 2020

In this tutorial we will learn to install Postgres.app to use PostgreSQL database on Mac.

Postgres.app is a full-featured PostgreSQL installation packaged as a standard Mac app. -- https://postgresapp.com

Visit postgresapp.com and download the software on your Mac.

Run the installer and move the Postgres.app into the Applications directory.

Postgres.app will install on your Mac with the following default settings.

In this ES6 JavaScript tutorial we will learn about Template Literals (Template strings).

Template literals are string literals that allows us to embed expressions, multi-line strings and string interpolation.

Template literals are enclosed using backtick ` ` instead of single quotes and double quotes.

Let's print the string Hello World using single and double quotes.

console.log('Hello World');
console.log("Hello World");

Now, let's print the same string using template literal.

console.log(`Hello World`);

In this ES6 JavaScript tutorial we will learn to create variables using var, let and const.

Alright, let's begin by creating a variable using the var keyword.

Let's say we want to create a variable x and assign it a value 10. So, we will write the following line.

var x = 10;

Now, if we want to print the value of x we can console log it by writing the following line.

var x = 10;
console.log(x);

And we get the output 10.

Few important points we must note while using the var keyword to declare variables.

We can redefine the same variable x again and we will not get any error.

So, we can write something like the following.

var x = 10;
console.log(x); // 10
var x = 20;
console.log(x); // 20