if Keyword

if (condition)
  statement1

// With an else clause
if (condition)
  statement1
else
  statement2

An expression that is considered to be either truthy or falsy.

Statement that is executed if condition is truthy. Can be any statement, including further nested if statements. To execute multiple statements, use a block statement ({ /* ... */ }) to group those statements. To execute no statements, use an empty statement.

Statement that is executed if condition is falsy and the else clause exists. Can be any statement, including block statements and further nested if statements.