js ternary
condition ? ifTrue : ifFalseternary operator javascript
// ternary operators are frequently used as a shorter cleaner if statement
// condition ? exprIfTrue : exprIfFalse
let age = 15;
let canDrive = age >= 16 ? 'yes' : 'no';
// canDrive will be 'no'
// the condition will be age > 16 which is false so canDrive will equal exprIfFalse
// this ternary is the same as this if else statement
let age = 15;
let canDrive;
if (age >= 16) {
canDrive = 'yes';
} else {
canDrive = 'no';
}
// canDrive will be 'no' because 15 is less than 16ternary operator shorthand javascript
let startingNum = startingNum ? otherNum : 1
// can be expressed as
let startingNum = otherNum || 1
// Another scenario not covered here is if you want the value
// to return false when not matched.
//The JavaScript shorthandfor this is:
let startingNum = startingNum ? otherNum : 0
// But it can be expressed as
let startingNum = startingNum && otherNumternary operator javascript
// Write your function here:
const lifePhase = (age) => {
return age < 0 || age > 140 ? 'This is not a valid age':
age < 3 ? 'baby':
age < 13 ? 'child':
age < 20 ? 'teen':
age < 65 ? 'adult':'senior citizen';
}
console.log(lifePhase(5))Copyright © 2021 Codeinu
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