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Conditional Statement

If condition​

let age = 33;

if (age > 18) {
    console.log("Your are an adult.");
}

if-else​

let age = 15;

if (age > 18) {
    console.log("You are an adult.");
} else {
    console.log("You are not an adult yet.");
}

During equality test, use === for strict equality:

a = 4;
b = "4";

a == b // this will result true.
a === b // this will result false

And and or operators are denoted by && and ||, respectively.

let age = 35;

if (age > 18 && age < 60) {
    console.log("You are an adult but not a senior citizen.");
}

There is a shorthand for if-else condition as well:

if (a==b) {
    console.log("Match");
} else {
    console.log("No match");
}

is same as:

a==b ? console.log("Match") : console.log("No match");