Compare two dates with JavaScript

The Date object will do what you want – construct one for each date, then compare them using the >, <, <= or >=. The ==, !=, ===, and !== operators require you to use date.getTime() as in to be clear just checking for equality directly with the date objects won’t work I suggest you use drop-downs or some similar constrained form of date entry rather than text boxes, … Read more

Change date format in a Java string

Use LocalDateTime#parse() (or ZonedDateTime#parse() if the string happens to contain a time zone part) to parse a String in a certain pattern into a LocalDateTime. Use LocalDateTime#format() (or ZonedDateTime#format()) to format a LocalDateTime into a String in a certain pattern. Or, when you’re not on Java 8 yet, use SimpleDateFormat#parse() to parse a String in a certain pattern into a Date. Use SimpleDateFormat#format() to format a Date into a String in a certain pattern. See also: Java string to date … Read more

Java string to date conversion

That’s the hard way, and those java.util.Date setter methods have been deprecated since Java 1.1 (1997). Moreover, the whole java.util.Date class was de-facto deprecated (discommended) since introduction of java.time API in Java 8 (2014). Simply format the date using DateTimeFormatter with a pattern matching the input string (the tutorial is available here). In your specific case of “January 2, 2010” as the input … Read more

How to format a JavaScript date

For custom-delimited date formats, you have to pull out the date (or time) components from a DateTimeFormat object (which is part of the ECMAScript Internationalization API), and then manually create a string with the delimiters you want. To do this, you can use DateTimeFormat#formatToParts. You could destructure the array, but that is not ideal, as … Read more

How to format a JavaScript date

For custom-delimited date formats, you have to pull out the date (or time) components from a DateTimeFormat object (which is part of the ECMAScript Internationalization API), and then manually create a string with the delimiters you want. To do this, you can use DateTimeFormat#formatToParts. You could destructure the array, but that is not ideal, as … Read more

How to format a JavaScript date

For custom-delimited date formats, you have to pull out the date (or time) components from a DateTimeFormat object (which is part of the ECMAScript Internationalization API), and then manually create a string with the delimiters you want. To do this, you can use DateTimeFormat#formatToParts. You could destructure the array, but that is not ideal, as the array output depends … Read more

Calculate business days

Here’s a function from the user com ments on the date() function page in the PHP manual. It’s an improvement of an earlier function in the comments that adds support for leap years. Enter the starting and ending dates, along with an array of any holidays that might be in between, and it returns the … Read more

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