If-Else Statement
if (condition) {
//code
} else {
//code
}
if
is keywordcondition
is a boolean expressionelse
is keywordcode
is any valid JavaScript code
if condition is true, then if-block code is run. if condition is false, then else-block code is run.
Examples
1. Using if-else statement to check if a
is even or not.
a = 10;
if (a%2 == 0) {
console.log("a is even.");
} else {
console.log("a is not even.");
}
2. Using if-else statement to check if supplies
are good, or more supplies are needed.
supplies = 10;
if (supplies > 5) {
console.log("Supplies are good.");
} else {
console.log("Need more supplies.");
}