Conditional Statements
Variable is less than criteria
if(input < 20 ){
Statements to process
}
Variable is equal to criteria
if(input == 20 ){
Statements to process
}
Variable is less than or equal to criteria
if(input <= 20 ){
Statements to process
}
Variable is greater than or equal to criteria
if(input >= 20 ){
Statements to process
}
Variable is not equal to criteria
if(input != 20 ){
Statements to process
}
Both criteria must be met to be true
if(firstvar != 20 && secondvar == 2 ){
Statements to process
}
One or both criteria must be met to be true
if(firstvar != 20 || secondvar == 2 ){
Statements to process
}
Variable is not a number
if(isNaN(firstvar)) {
Statements to process
}
If then or else
if(input == 20 ){
Statements to process
}
else {
Statements to process
}
Value of the Variable is an empty string
if(input == ""){
Statements to process
}
Switch Conditional Statement
switch ( ExpressionToMatch) {
case "Maryland" :
Statements;
break;
case "Delaware ":
Statements;
break;
case "West Virginia ":
Statements;
break;
case "New York ":
break;
default :
Statements;
}