Loading lesson path
Conditional Statements allow us to perform different actions for different conditions. Conditional statements run different code depending on true or false conditions.
if if...else if...else if...else switch ternary (? :)Use if to specify a code block to be executed, if a specified condition is true Use else to specify a code block to be executed, if the same condition is false Use else if to specify a new condition to test, if the first condition is false Use switch to specify many alternative code blocks to be executed
(? :)
(ternary) as a shorthand for if...elseUse if to specify a code block to be executed, if a specified condition is true. Syntax if ( condition
) {// code to execute if the condition is true
}Use else to specify a code block to be executed, if the same condition is false.
Syntax if (condition
) {// code to execute if the condition is true
}
else {// code to execute if the condition is false
}Use else if to specify a new condition to test, if the first condition is false.
Syntax if (condition1
) {// code to execute if condition1 is true
}
else if (condition2
) {// code to execute if the condition1 is false and condition2 is true
} else {// code to execute if the condition1 is false and condition2 is false
}Use switch to specify many alternative code blocks to be executed.
expression
) {case x
// code block break;case y
// code block break;default: // code block
}
Ternary Operator (? :)(? :)
(ternary) as a shorthand for if...else.? expression1
expression2