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JavaScript - jak pobiera─ç aktualn─ů dat─Ö?

3 points
Created by:
Sylwia
1327

W JavaScript, aby uzyskać aktualny czas używamy klasy Date.

1. Przykład predefiniowanych metod

// ONLINE-RUNNER:browser;

var now = new Date();

// Current date: Thu Feb 20 2020
console.log('Current date: ' + now.toDateString());

Uwaga: podczas korzystania z┬á┬áto...String┬ánale┼╝y zachowa─ç ostro┼╝no┼Ť─ç, ze wzgl─Ödu na okre┼Ťlone formatowanie daty i czasu w ustawieniach regionalnych.

2. Przyk┼éad formatowania niestandardowego (rok, miesi─ůc, dzie┼ä)

// ONLINE-RUNNER:browser;

function renderNumber(value, length) {
    var result = value.toString();

    for(; length > result.length; length -= 1)
        result = '0' + result;

    return result;
}

var now = new Date();

var year = now.getFullYear();
var month = now.getMonth() + 1;
var day = now.getDate();

var date = renderNumber(year, 4) 
    + '.' + renderNumber(month, 2) 
    + '.' + renderNumber(day, 2);

console.log('Current date: ' + date); // Current date: 2020.02.20

Bibliografia

  1. Date class - MDC Docs
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