How to copy a date in JavaScript
November 4, 2023
In JavaScript, the Date
object can be copied by creating a new Date
object and passing the value of the existing date to the constructor. Here are a few ways to copy a Date
object:
Using the new Date()
Constructor
const originalDate = new Date(); const copiedDate = new Date(originalDate);
In this case, originalDate
is copied to copiedDate
. Both will have the same date and time, but will be independent objects.
Using the Date.prototype.getTime()
Method
const originalDate = new Date(); const copiedDate = new Date(originalDate.getTime());
getTime()
returns the number of milliseconds since January 1, 1970, 00:00:00 UTC. When you pass this value to the Date
constructor, it creates a new Date
object with the same time.
Using the Spread Operator in ES6
While the spread operator (...
) is commonly used to copy arrays and objects, it doesn't apply directly to date objects since they are not iterable. However, you can use the spread operator within an array or other iterable context:
const originalDate = new Date(); const dateArray = [originalDate.getTime()]; const copiedDate = new Date(...dateArray);
This is not the most straightforward method for copying dates, but it demonstrates an indirect use of the spread operator with date values.
Using Object Destructuring (Not Recommended)
Like the spread operator, object destructuring is not directly applicable to date objects since they are not plain objects with enumerable properties that can be copied in this way.
Remember, Date
objects are mutable, so if you modify either originalDate
or copiedDate
(for example, by using setDate()
, setTime()
, etc.), it will not affect the other date object since they are separate instances.
Clone a Date with a Function
If you find yourself needing to copy dates often, you might write a function to handle this for you:
javascriptCopy code function cloneDate(date) { return new Date(date.getTime()); } const originalDate = new Date(); const copiedDate = cloneDate(originalDate);
You could ship faster.
Imagine the time you'd save if you never had to build another internal tool, write a SQL report, or manage another admin panel again. Basedash is built by internal tool builders, for internal tool builders. Our mission is to change the way developers work, so you can focus on building your product.
TOC
November 4, 2023
In JavaScript, the Date
object can be copied by creating a new Date
object and passing the value of the existing date to the constructor. Here are a few ways to copy a Date
object:
Using the new Date()
Constructor
const originalDate = new Date(); const copiedDate = new Date(originalDate);
In this case, originalDate
is copied to copiedDate
. Both will have the same date and time, but will be independent objects.
Using the Date.prototype.getTime()
Method
const originalDate = new Date(); const copiedDate = new Date(originalDate.getTime());
getTime()
returns the number of milliseconds since January 1, 1970, 00:00:00 UTC. When you pass this value to the Date
constructor, it creates a new Date
object with the same time.
Using the Spread Operator in ES6
While the spread operator (...
) is commonly used to copy arrays and objects, it doesn't apply directly to date objects since they are not iterable. However, you can use the spread operator within an array or other iterable context:
const originalDate = new Date(); const dateArray = [originalDate.getTime()]; const copiedDate = new Date(...dateArray);
This is not the most straightforward method for copying dates, but it demonstrates an indirect use of the spread operator with date values.
Using Object Destructuring (Not Recommended)
Like the spread operator, object destructuring is not directly applicable to date objects since they are not plain objects with enumerable properties that can be copied in this way.
Remember, Date
objects are mutable, so if you modify either originalDate
or copiedDate
(for example, by using setDate()
, setTime()
, etc.), it will not affect the other date object since they are separate instances.
Clone a Date with a Function
If you find yourself needing to copy dates often, you might write a function to handle this for you:
javascriptCopy code function cloneDate(date) { return new Date(date.getTime()); } const originalDate = new Date(); const copiedDate = cloneDate(originalDate);
You could ship faster.
Imagine the time you'd save if you never had to build another internal tool, write a SQL report, or manage another admin panel again. Basedash is built by internal tool builders, for internal tool builders. Our mission is to change the way developers work, so you can focus on building your product.
November 4, 2023
In JavaScript, the Date
object can be copied by creating a new Date
object and passing the value of the existing date to the constructor. Here are a few ways to copy a Date
object:
Using the new Date()
Constructor
const originalDate = new Date(); const copiedDate = new Date(originalDate);
In this case, originalDate
is copied to copiedDate
. Both will have the same date and time, but will be independent objects.
Using the Date.prototype.getTime()
Method
const originalDate = new Date(); const copiedDate = new Date(originalDate.getTime());
getTime()
returns the number of milliseconds since January 1, 1970, 00:00:00 UTC. When you pass this value to the Date
constructor, it creates a new Date
object with the same time.
Using the Spread Operator in ES6
While the spread operator (...
) is commonly used to copy arrays and objects, it doesn't apply directly to date objects since they are not iterable. However, you can use the spread operator within an array or other iterable context:
const originalDate = new Date(); const dateArray = [originalDate.getTime()]; const copiedDate = new Date(...dateArray);
This is not the most straightforward method for copying dates, but it demonstrates an indirect use of the spread operator with date values.
Using Object Destructuring (Not Recommended)
Like the spread operator, object destructuring is not directly applicable to date objects since they are not plain objects with enumerable properties that can be copied in this way.
Remember, Date
objects are mutable, so if you modify either originalDate
or copiedDate
(for example, by using setDate()
, setTime()
, etc.), it will not affect the other date object since they are separate instances.
Clone a Date with a Function
If you find yourself needing to copy dates often, you might write a function to handle this for you:
javascriptCopy code function cloneDate(date) { return new Date(date.getTime()); } const originalDate = new Date(); const copiedDate = cloneDate(originalDate);
You could ship faster.
Imagine the time you'd save if you never had to build another internal tool, write a SQL report, or manage another admin panel again. Basedash is built by internal tool builders, for internal tool builders. Our mission is to change the way developers work, so you can focus on building your product.
What is Basedash?
What is Basedash?
What is Basedash?
Ship faster, worry less with Basedash
Ship faster, worry less with Basedash
Ship faster, worry less with Basedash
You're busy enough with product work to be weighed down building, maintaining, scoping and developing internal apps and admin panels. Forget all of that, and give your team the admin panel that you don't have to build. Launch in less time than it takes to run a standup.
You're busy enough with product work to be weighed down building, maintaining, scoping and developing internal apps and admin panels. Forget all of that, and give your team the admin panel that you don't have to build. Launch in less time than it takes to run a standup.
You're busy enough with product work to be weighed down building, maintaining, scoping and developing internal apps and admin panels. Forget all of that, and give your team the admin panel that you don't have to build. Launch in less time than it takes to run a standup.
Dashboards and charts
Edit data, create records, oversee how your product is running without the need to build or manage custom software.
USER CRM
ADMIN PANEL
SQL COMPOSER WITH AI
Related posts
Related posts
Related posts
How to Remove Characters from a String in JavaScript
Jeremy Sarchet
How to Sort Strings in JavaScript
Max Musing
How to Remove Spaces from a String in JavaScript
Jeremy Sarchet
Detecting Prime Numbers in JavaScript
Robert Cooper
How to Parse Boolean Values in JavaScript
Max Musing
How to Remove a Substring from a String in JavaScript
Robert Cooper