reference https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString
mysql yyyy-mm-dd 
pure js - no external library required
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function date_formatter(value, row) {
if (value==null)
return "";
var date = new Date(value);
var options = {
year: "numeric", month: "2-digit",
day: "2-digit", hour: "2-digit", minute: "2-digit", hour12: false
};
return(date.toLocaleString("en-GB", options));
}
using it via bootstap-table
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<table id="logger_tbl" data-toggle="table" data-striped="true" data-url="x_pagination.php" data-pagination="true" data-page-size="50"></table>
data-sort-name="log_UTC_when" data-sort-order="desc"
data-side-pagination="server"
data-query-params="queryParamsLOGGER">
<thead>
<tr>
<!-- using data-formatter attribute -->
<th data-field="log_UTC_when" data-formatter="date_formatter" data-sortable="true">
Date UTC
</th>
</tr>
</thead>
locales:
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af-ZA
ca-CA
cs-CZ
da-DK
de-CH
de-DE
el-GR
en-GB
en-US
es-AR
es-ES
es-VE
et-EE
fi-FI
fr-FR
he-IL
hu-HU
it-IT
ja-JP
nl-NL
no-NO
pl-PL
pt-BR
pt-PT
ru-RU
sk-SK
sl-SI
sv-SE
tr-TR
uk-UA
zh-CH
origin - http://www.pipiscrew.com/?p=1680 mysqljavascript-mysql-datetime-field-to-javascript-format-date