nodejs w3schools code example

Example 1: javascript remove property from object

var person = {"first_name": "Billy","last_name": "Johnson"};
delete person.last_name; //delete last_name property

Example 2: else if javascript

if (condition1) {
  // code to be executed if condition1 is true
} else if (condition2) {
  // code to be executed if the condition1 is false and condition2 is true
} else {
  // code to be executed if the condition1 is false and condition2 is false
}

Example 3: javascript

JavaScript is a text-based programming language used both on the client-side
and server-side that allows you to make web pages interactive.
Where HTML and CSS are languages that give structure and style to web pages,
JavaScript gives web pages interactive elements that engage a user.

Example 4: if and if and else javascript

if (expression 1) {
   Statement(s) to be executed if expression 1 is true
} else if (expression 2) {
   Statement(s) to be executed if expression 2 is true
} else if (expression 3) {
   Statement(s) to be executed if expression 3 is true
} else {
   Statement(s) to be executed if no expression is true
}

Example 5: javascript

let str = 'Hello World';
console.log(str);