JavaScript Promises

Synchronous JavaScript operations

Like the name implies, synchronous operations execute in sequence. Each line of code or function is executed one after another.

const sum = 34 + 67;
const multiply = 56 * 56;

The code snippet above executes the first statement and then, if no error occurs, the second statement executes.

Synchronous operations block the execution of more statements to ensure that currently-running statements complete execution before another begins.