Programming Languages

JavaScript Conditionals

Conditional statements in JavaScript: if-else chains and switch statements.

If - Else

if ((age >= 14) && (age < 19)) {        # logical condition
    status = "Eligible.";               # executed if condition is true
} else {                                # else block is optional
    status = "Not eligible.";           # executed if condition is false
}

Switch Statement

switch (new Date().getDay()) {      # input is current day
    case 6:                         # if (day == 6)
        text = "Saturday";
        break;
    case 0:                         # if (day == 0)
        text = "Sunday";
        break;
    default:                        # else...
        text = "Whatever";
}