What is the best way to change a timestamp into a date format using Angular?

Question

What is the best way to change a timestamp into a date format using Angular?

I am struggling to convert a timestamp to the date format 'dd/MM/YYYY' but keep getting a different date format in the output. I am using syncfusion spreadsheet for this task.

https://i.sstatic.net/BoRaa.png

export-electronic.component.ts

updatedata(){
        this.dataApi.getElectronicById(this.id).subscribe(res => {
          this.electronicObj = res;
          console.log(this.electronicObj);
          this.spreadsheetObj.updateCell({ value: 
          this.electronicObj.mantainence_history},"O3");
          this.spreadsheetObj.updateCell({ value: 
          this.electronicObj.cost_status},"P3");
          this.spreadsheetObj.updateCell({ value: this.electronicObj.warranty_date.toDate()+this.electronicObj.expire_date.toDate()},"Q3");}

export-electronic.component.html

<ejs-spreadsheet #spreadsheet  (created)="created()" (openComplete)="updatedata()" openUrl='https://ej2services.syncfusion.com/production/web-services/api/spreadsheet/open' allowOpen='true' (beforeSave)='beforeSave($event)' saveUrl='https://ej2services.syncfusion.com/production/web-services/api/spreadsheet/save'  allowSave='true'> 
</ejs-spreadsheet>

When displaying the result in an excel cell, I need it to appear like this: Example 29/11/2022 - 01/12/2022 Thank you for any guidance provided.

**** The Answer *****

updatedata(){
    this.dataApi.getElectronicById(this.id).subscribe(res => {
        this.electronicObj = res;
        console.log(this.electronicObj);
        const q3Value = (new Date(this.electronicObj.warranty_date.toDate()).toLocaleDateString('en-GB')) + ' - ' + (new Date(this.electronicObj.expire_date.toDate()).toLocaleDateString('en-GB'));
        this.spreadsheetObj.updateCell({ value: 
        this.electronicObj.mantainence_history},"O3");
        this.spreadsheetObj.updateCell({ value: 
        this.electronicObj.cost_status},"P3");
        this.spreadsheetObj.updateCell({ value: q3Value},"Q3");
    });
}

https://i.sstatic.net/jEAgw.png

angular typescript

Answer 1

Answer №1

If you want to customize the format of a date string or timestamp in JavaScript, you can convert it to a JS date object and then format it as desired. For example, here is how you can format a date to display in "dd/mm/yyyy" format:

new Date('Mon Nov 9 13:29:40 2012').toLocaleDateString('en-GB');

Using the locale 'en-GB' ensures that the date will always be displayed in dd/mm/yyyy format.

In your code, you can update it like this:

updatedata(){
    this.dataApi.getElectronicById(this.id).subscribe(res => {
        this.electronicObj = res;
        console.log(this.electronicObj);
        const q3Value = (new Date(this.electronicObj.warranty_date).toLocaleDateString('en-GB')) + ' - ' + (new Date(this.electronicObj.expire_date).toLocaleDateString('en-GB'));
        this.spreadsheetObj.updateCell({ value: 
        this.electronicObj.mantainence_history},"O3");
        this.spreadsheetObj.updateCell({ value: 
        this.electronicObj.cost_status},"P3");
        this.spreadsheetObj.updateCell({ value: q3Value},"Q3");
    });
}

This code snippet creates a formatted date range for insertion into the spreadsheet. Pay attention to the variable q3Value.

Answer 2

If you want to customize the format of a date string or timestamp in JavaScript, you can convert it to a JS date object and then format it as desired. For example, here is how you can format a date to display in "dd/mm/yyyy" format:

new Date('Mon Nov 9 13:29:40 2012').toLocaleDateString('en-GB');

Using the locale 'en-GB' ensures that the date will always be displayed in dd/mm/yyyy format.

In your code, you can update it like this:

updatedata(){
    this.dataApi.getElectronicById(this.id).subscribe(res => {
        this.electronicObj = res;
        console.log(this.electronicObj);
        const q3Value = (new Date(this.electronicObj.warranty_date).toLocaleDateString('en-GB')) + ' - ' + (new Date(this.electronicObj.expire_date).toLocaleDateString('en-GB'));
        this.spreadsheetObj.updateCell({ value: 
        this.electronicObj.mantainence_history},"O3");
        this.spreadsheetObj.updateCell({ value: 
        this.electronicObj.cost_status},"P3");
        this.spreadsheetObj.updateCell({ value: q3Value},"Q3");
    });
}

This code snippet creates a formatted date range for insertion into the spreadsheet. Pay attention to the variable q3Value.

Answer 3

Answer №2

Feel free to experiment with any of these options

Utilize the Pipe method

getFormatedDate(date: Date, format: string) {
    const datePipe = new DatePipe('en-US'); // specify the culture
    return datePipe.transform(date, format);
}

Consider using moment.js library

    let parsedDate = moment(dateStr,"MM-DD-YYYY");
    let outputDate = parsedDate.format("DD-MM-YYYY");

Try a Simple Split approach

const str = '10-23-2022';

const [month, day, year] = str.split('-');

console.log(month); // 📌 "10"
console.log(day); // 📌 "23"
console.log(year); // 📌 "2022"

const date = new Date(+year, +month - 1, +day);

console.log(date);

Answer 4

Feel free to experiment with any of these options

Utilize the Pipe method

getFormatedDate(date: Date, format: string) {
    const datePipe = new DatePipe('en-US'); // specify the culture
    return datePipe.transform(date, format);
}

Consider using moment.js library

    let parsedDate = moment(dateStr,"MM-DD-YYYY");
    let outputDate = parsedDate.format("DD-MM-YYYY");

Try a Simple Split approach

const str = '10-23-2022';

const [month, day, year] = str.split('-');

console.log(month); // 📌 "10"
console.log(day); // 📌 "23"
console.log(year); // 📌 "2022"

const date = new Date(+year, +month - 1, +day);

console.log(date);

What is the best way to change a timestamp into a date format using Angular?

Answer №1

Answer №2

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