html - How to do date masking using javascript (without JQuery)?

Question

<![CDATA[
    var $ = jQuery;
    String locale = getUserLocale();
    $(document).ready(function() {

        if (!isEmptyNull(locale) && locale.equals("zh_CN")) {
            $("input[id*='text12']").mask('9999年99月99日');
        }
        else {
            $("input[id*='text12']").mask('99/99/9999');
        }
    });
]]>

<p:calendar id="text12" styleClass="calendar" maxlength="10" pattern="#
{pc_Test.dateDisplayFormat}"></p:calendar>

If the locale is equal to 'zh_CN', the masking would be '9999年99月99日'. Otherwise, it would would be '99/99/9999'.
When I remove the if else command, it works. But if I put the if else command inside, it doesn't work.

How do I solve it?

Answer 1

Check out the below code..

<input
    type="text"
    name="date"
    placeholder="dd/mm/yyyy"
    onkeyup="
        var v = this.value;
        if (v.match(/^d{2}$/) !== null) {
            this.value = v + '/';
        } else if (v.match(/^d{2}/d{2}$/) !== null) {
            this.value = v + '/';
        }"
    maxlength="10"
>

<input
    type="text"
    name="date"
    placeholder="mm/dd/yyyy"
    onkeyup="
        var v = this.value;
        if (v.match(/^d{2}$/) !== null) {
            this.value = v + '/';
        } else if (v.match(/^d{2}/d{2}$/) !== null) {
            this.value = v + '/';
        }"
    maxlength="10"
>
<input
    type="text"
    name="date"
    placeholder="yyyy/mm/dd"
    onkeyup="
        var v = this.value;
        if (v.match(/^d{4}$/) !== null) {
            this.value = v + '/';
        } else if (v.match(/^d{4}/d{2}$/) !== null) {
            this.value = v + '/';
        }"
    maxlength="10"
>
<input
    type="text"
    name="date"
    placeholder="yyyy年mm月dd"
    onkeyup="
        var v = this.value;
        if (v.match(/^d{4}$/) !== null) {
            this.value = v + '年';
        } else if (v.match(/^d{4}年d{2}$/) !== null) {
            this.value = v + '月';
        }"
    maxlength="10"
>