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js Regex to replace

tag with date string

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Oct 27.2020

Hi,everyone,
how to use js Regex to replace <p> tag with date string in the html?
**In fact, it is just add a class to date.**
old:

**<p>**2020-10-15</p>
**<p>**2020-10-26</p>
<p>aaa</p>

new:

**<p class=”date”>**2020-10-15</p>
**<p class=”date”>**2020-10-26</p>
<p>aaa</p>

**Bold is the changed part.**
I’m a js beginner, and I know the regex of date is `d{4}-d{2}-d{2}` ,
but how to write it completely in js?

Thank you all ！

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JavaScript

3 Comments(s) ↴

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@SempervivumOct 27.2020 — I assume you intend to modify all p tags in the complete document? If so try this javascript:
&lt;script&gt;
document.querySelectorAll('p').forEach(item =&gt; {
if (item.textContent.match(/^d{4}-d{2}-d{2}$/)) {
item.classList.add('date');
}
});
&lt;/script&gt;
Place it at the end of the body, right before the closing `&lt;/body&gt;</C>.<br/>
It you want to make the replacement tolerant with leading and trailing whitespaces use this regex:<br/>
<C>/^s?d{4}-d{2}-d{2}s?$/</C>

I further assumed that the p tag contains the date string <STRONG>**only**</STRONG>. If there may be other text around the date string, omit the ^ and $:<br/>
<C>/s?d{4}-d{2}-d{2}/`
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@Carson356authorOct 27.2020 — @Sempervivum#1624600 Thanks a lot. Perfect solution!
Copy linkTweet thisAlerts:
@VITSUSAOct 27.2020 — I agree with Sempervivum, this is a good solution :)
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