js ternary
condition ? ifTrue : ifFalse
javascript ternary operator
//ternary operator syntax and usage:
condition ? doThisIfTrue : doThisIfFalse
//Simple example:
let num1 = 1;
let num2 = 2;
num1 < num2 ? console.log("True") : console.log("False");
// => "True"
//Reverse it with greater than ( > ):
num1 > num2 ? console.log("True") : console.log("False");
// => "False"
ternary function javascript
var variable;
if (condition)
variable = "something";
else
variable = "something else";
//is the same as:
var variable = condition ? "something" : "something else";
ternary 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 16
how to use ternary operator in javascript
function example(…) {
return condition1 ? value1
: condition2 ? value2
: condition3 ? value3
: value4;
}
// Equivalent to:
function example(…) {
if (condition1) { return value1; }
else if (condition2) { return value2; }
else if (condition3) { return value3; }
else { return value4; }
}
using ternary operator in javascript
// program to check pass or fail
let marks = prompt('Enter your marks :');
// check the condition
let result = (marks >= 40) ? 'pass' : 'fail';
console.log(`You ${result} the exam.`);
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