Omitting optional else-branches
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Posted on Sometimes, the else in an if-else is optional. When the if-branch ends with a return keyword, we don’t have to nest the alternative case in else at all. We can place the code that would usually be under the else-condition out to the same indentation as the if branch.
const getWeekdayMood = isMonday => {
if (isMonday) {
// If the condition is `true`, the function returns a value and ends.
return "Yes, a new week!"
} else {
// This code only happens if the condition is `false`.
return "Time for another Monday soon!"
}
}
const getWeekdayMood = isMonday => {
if (isMonday) {
// Same deal: if this returns, the function ends. Nothing else happens.
return "Yes, a new week!"
}
// Anything here also only happens if the condition is `false`. We don’t
// need to nest our code in an `else` for that.
// Look ma, no `else`!
return "Time for another Monday soon!"
}const getWeekdayMood = isMonday => {
if (isMonday) {
// If the condition is `true`, the function returns a value and ends.
return "Yes, a new week!"
} else {
// This code only happens if the condition is `false`.
return "Time for another Monday soon!"
}
}
const getWeekdayMood = isMonday => {
if (isMonday) {
// Same deal: if this returns, the function ends. Nothing else happens.
return "Yes, a new week!"
}
// Anything here also only happens if the condition is `false`. We don’t
// need to nest our code in an `else` for that.
// Look ma, no `else`!
return "Time for another Monday soon!"
}const getWeekdayMood = isMonday => {
if (isMonday) {
// If the condition is `true`, the function returns a value and ends.
return "Yes, a new week!"
} else {
// This code only happens if the condition is `false`.
return "Time for another Monday soon!"
}
}
const getWeekdayMood = isMonday => {
if (isMonday) {
// Same deal: if this returns, the function ends. Nothing else happens.
return "Yes, a new week!"
}
// Anything here also only happens if the condition is `false`. We don’t
// need to nest our code in an `else` for that.
// Look ma, no `else`!
return "Time for another Monday soon!"
}const getWeekdayMood = isMonday => {
if (isMonday) {
// If the condition is `true`, the function returns a value and ends.
return "Yes, a new week!"
} else {
// This code only happens if the condition is `false`.
return "Time for another Monday soon!"
}
}
const getWeekdayMood = isMonday => {
if (isMonday) {
// Same deal: if this returns, the function ends. Nothing else happens.
return "Yes, a new week!"
}
// Anything here also only happens if the condition is `false`. We don’t
// need to nest our code in an `else` for that.
// Look ma, no `else`!
return "Time for another Monday soon!"
}