Question

How to check if date1 is before date2 in TypeScript

Answer 1

const date1: Date = new Date('2025-06-01');
const date2: Date = new Date('2025-06-10');
 
if (date1.getTime() < date2.getTime()) {
	console.log('date1 is before date2');
} else {
  	console.log('date1 is not before date2');
}
 
 
 
/*
run:
 
"date1 is before date2" 
 
*/

 

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Answer 2

const date1: Date = new Date('2025-06-01');
const date2: Date = new Date('2025-06-10');
 
if (date1 < date2) {
	console.log('date1 is before date2');
} else {
  	console.log('date1 is not before date2');
}
 
 
 
/*
run:
 
"date1 is before date2" 
 
*/

 

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Answer 3

const date1: Date = new Date('2025-06-01');
const date2: Date = new Date('2025-06-10');
 
if (date1.toISOString() < date2.toISOString()) {
	console.log('date1 is before date2');
} else {
  	console.log('date1 is not before date2');
}
 
 
 
/*
run:
 
"date1 is before date2" 
 
*/

 

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