convert datetime javascript mysql

JavaScript
function getTime() {
    const date = new Date();
    return date.getFullYear()
            + '-' +
            date.getMonth()
            + '-' +
            date.getDate()
            + ' ' +
            date.getHours()
            + ':' +
            date.getMinutes()
            + ':' +
            date.getSeconds();
}
Source

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