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Accepted
josanangel
Asked: 2020-09-25 10:49:39 +0800 CST 2020-09-25 10:49:39 +0800 CST

When parsing a date array (in string) it only parses the first item and the others returns InvalidDate

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I have the following problem:
Given this array of dates in string format:

let arrayStringDate = ["10/01/1995", "20/01/1995", "21/01/2010", "25/01/2010"]

I am trying to parse everything in Datethe following way:

let parsedArray = arrayStringDate.map(date => new Date(date));

The result is that it parses only the first item and the others indicate that they are invalid:

[Sun Oct 01 1995 00:00:00 GMT+0100 (hora estándar de Europa central), Invalid Date, Invalid Date, Invalid Date]<br>

I also tried to do it by going through the array item by item but I get the same result. As you can see, it only parses the first string , the others cause an error. What I can be doing wrong?

javascript

2 Answers

  1. The dates must be in mm/dd/yyyy format like this:

    let arrayStringDate = ["10/01/1995", "11/01/1995", "12/01/2010", "5/01/2010"]



     let parsedArray =  arrayStringDate.map(x => new Date(x));
     
     console.log(parsedArray);

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  2. Best Answer

    The default date format in Javascript is mm/dd/yyyy, but it can also work with formatting yyyy/mm/ddand you just need:

    • Create an array, separating the parts with `.split('/')´
    • Reverse the order withreverse()
    • unite again with.join('/')

    let arrayStringDate = ["10/01/1995", "20/01/1995", "21/01/2010", "25/01/2010"];
let parsedArray =  arrayStringDate.map(date => {
    let parts = date.split("/").reverse();
    return new Date(parts.join('/'));
});
console.log(parsedArray);

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