08. BASICS | Conditional Statements in JavaScript

if statement

if (condition) {
    // execute this code if condition is true
}

if ... else statement

if (condition) {
    // execute this code if condition is true
} else {
    // execute this code if condition is false
}

if ... else if ... else statement

if (condition1) {
    // execute this code if condition1 met
    // don't check for remaining conditions
} else if (condition2) {
    // execute this code if condition1 doesn't met but condition2 met
    // don't check for remaining conditions
} else if (condition3) {
    // execute this code if condition1 & 2 don't met but condition3 met
    // don't check for remaining conditions
} else if (condition4) {
    // execute this code if condition1, 2 & 3 don't met but condition4 met
} else {
    // execute this code if none of the above conditions met
}

switch statement

switch (expression) {
  case value1:
    // Code to execute if expression === value1
    break;
  case value2:
    // Code to execute if expression === value2
    break;
  // ... more cases ...
  default:
    // Code to execute if none of the cases match
}

ternary operator

Syntax: condition ? expression1 : expression2

If condition is true, execute expression1 else execute expression2.

(marks >= 33) ? "Pass" : "Fail"

Happy reading!