This will strip all tags including `script`, `ins`, `style` and `stubborn divs`. It's made as an attempt to solve [this](https://gist.github.com/waptik/184a0c9050bb97871949e7041e4661c1). It was made as attempth to replicate `wp_strip_all_tags()` -> https://core.trac.wordpress.org/browser/tags/5.2.3/src/wp-includes/formatting.php#L5091

strip_tags.js

function strip_tags(text) {
return text.replace(/<(script|ins|style)[^>]*>([\s\S]*?)<\/(|script|ins|style)[^>]*>/gm, "").replace(/(<([^>]+)>)/ig,"").trim();
}

Say you have this code sample

let zi = `<div class="cha-words">
<p>He had already used all the tricks in his book to try to break the array but found himself still trapped in Gu Xijiu&#8217;s simple formation.</p>
<p>&#8220;Shuaaa!&#8221; A big stone was suddenly moved, and Gu Xijiu appeared three feet away from the man. She glared at him and said, &#8220;It has been five minutes. What do you have to say?&#8221;</p>
<p>Hua Qianjun remained silent. He looked at Gu Xijiu with some respect. He was willing to own up to his loss, so he said, &#8220;I will listen to your instructions!&#8221;</p>
<p>&#8220;Very good; you have already delayed us for five minutes, so you must pay it back quickly. Please move the big rock over and put it here.&#8221; She pointed at a specific location.</p><div class="kckwz5db9a4201771d" ><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js" type="7d72dad64abc47b72af0021a-text/javascript"></script>
<ins class="adsbygoogle"
     style="display:block; text-align:center;"
     data-ad-layout="in-article"
     data-ad-format="fluid"
     data-ad-client="ca-pub-2152343736638495"
     data-ad-slot="1818918989"></ins>
<script type="7d72dad64abc47b72af0021a-text/javascript">
     (adsbygoogle = window.adsbygoogle || []).push({});
</script></div><style type="text/css">
@media screen and (min-width: 1201px) {
.kckwz5db9a4201771d {
display: block;
}
}
@media screen and (min-width: 993px) and (max-width: 1200px) {
.kckwz5db9a4201771d {
display: block;
}
}
@media screen and (min-width: 769px) and (max-width: 992px) {
.kckwz5db9a4201771d {
display: block;
}
}
@media screen and (min-width: 768px) and (max-width: 768px) {
.kckwz5db9a4201771d {
display: block;
}
}
@media screen and (max-width: 767px) {
.kckwz5db9a4201771d {
display: block;
}
}
</style>

<p>Hua Qianjun looked at the big rock, and then looked around. He felt bad. In five minutes, Gu Xijiu and Zhu Duqing had already finished arranging at least half of the array. There were more than a dozen large boulders in different positions, and there were several poles of bamboo standing in the gaps between the rocks.</p>
<p>The big rock that Gu Xijiu asked him to move was the largest one in the whole cave. It was about ten tons and was located in the corner of the cave. Hua Qianjun had to do as told, so he headed over to the big rock. Fortunately, he still had a lot of energy. Hence, he managed to move the heavy boulder to its designated position without a break.</p>
<p>While analyzing the formation again, he seemed to feel a sense of familiarity. His heart raced as he asked, &#8220;Did you learn about array formations from the Devil King?&#8221;</p>
<p>He could see that Gu Xijiu and the Devil King had quite a complicated relationship. They were probably together in the past. Perhaps, the Devil King had taught her about array formations.</p><div class="aefnk5db9a420175f2" ><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js" type="7d72dad64abc47b72af0021a-text/javascript"></script>
<ins class="adsbygoogle"
     style="display:block; text-align:center;"
     data-ad-layout="in-article"
     data-ad-format="fluid"
     data-ad-client="ca-pub-2152343736638495"
     data-ad-slot="2094444673"></ins>
<script type="7d72dad64abc47b72af0021a-text/javascript">
     (adsbygoogle = window.adsbygoogle || []).push({});
</script></div><style type="text/css">
@media screen and (min-width: 1201px) {
.aefnk5db9a420175f2 {
display: block;
}
}
@media screen and (min-width: 993px) and (max-width: 1200px) {
.aefnk5db9a420175f2 {
display: block;
}
}
@media screen and (min-width: 769px) and (max-width: 992px) {
.aefnk5db9a420175f2 {
display: block;
}
}
@media screen and (min-width: 768px) and (max-width: 768px) {
.aefnk5db9a420175f2 {
display: block;
}
}
@media screen and (max-width: 767px) {
.aefnk5db9a420175f2 {
display: block;
}
}
</style>

<p>Gu Xijiu glanced at him with a faint smile. &#8220;Would you believe it if I told you that I am the one who taught this formation to the Devil King?&#8221;</p><div class="gwras5db9a42017677" ><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js" type="7d72dad64abc47b72af0021a-text/javascript"></script>
<ins class="adsbygoogle"
     style="display:block; text-align:center;"
     data-ad-layout="in-article"
     data-ad-format="fluid"
     data-ad-client="ca-pub-2152343736638495"
     data-ad-slot="5183448928"></ins>
<script type="7d72dad64abc47b72af0021a-text/javascript">
     (adsbygoogle = window.adsbygoogle || []).push({});
</script></div><style type="text/css">
@media screen and (min-width: 1201px) {
.gwras5db9a42017677 {
display: block;
}
}
@media screen and (min-width: 993px) and (max-width: 1200px) {
.gwras5db9a42017677 {
display: block;
}
}
@media screen and (min-width: 769px) and (max-width: 992px) {
.gwras5db9a42017677 {
display: block;
}
}
@media screen and (min-width: 768px) and (max-width: 768px) {
.gwras5db9a42017677 {
display: block;
}
}
@media screen and (max-width: 767px) {
.gwras5db9a42017677 {
display: block;
}
}
</style>
<div class="nmhjz5db9a4201755c" ><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js" type="7d72dad64abc47b72af0021a-text/javascript"></script>
<ins class="adsbygoogle"
     style="display:block; text-align:center;"
     data-ad-layout="in-article"
     data-ad-format="fluid"
     data-ad-client="ca-pub-2152343736638495"
     data-ad-slot="5558583949"></ins>
<script type="7d72dad64abc47b72af0021a-text/javascript">
     (adsbygoogle = window.adsbygoogle || []).push({});
</script></div><style type="text/css">
@media screen and (min-width: 1201px) {
.nmhjz5db9a4201755c {
display: block;
}
}
@media screen and (min-width: 993px) and (max-width: 1200px) {
.nmhjz5db9a4201755c {
display: block;
}
}
@media screen and (min-width: 769px) and (max-width: 992px) {
.nmhjz5db9a4201755c {
display: block;
}
}
@media screen and (min-width: 768px) and (max-width: 768px) {
.nmhjz5db9a4201755c {
display: block;
}
}
@media screen and (max-width: 767px) {
.nmhjz5db9a4201755c {
display: block;
}
}
</style>

<p>Hua Qianjun was stunned. &#8220;How could that be?!&#8221;</p>
<p>Gu Xijiu leisurely replied, &#8220;Anything is possible. Besides, you hardly know me. I almost had your Devil King as my disciple before. Anyway, quickly form up the array. I am very weak, so I have to rely on both of you.&#8221;</p>
<p>Hua Qianjun felt like he was struck by lightning! While he was diligently moving the big rocks as quickly as he could, he asked, &#8220;Is Miss Gu much older than the Devil King?&#8221;</p>
<p>Gu Xijiu kept silent for a moment. This had always caused her trouble in the past. Before she answered, Zhu Duqing laughed out loud. &#8220;That&#8217;s funny! In this world, people are respected by their capability, not by age. Take me, for instance. I am much older than Miss Gu, but I also got her to be my master. Perhaps your Devil King used to be less capable than Miss Gu, so it is not surprising that he would consider her as his master.&#8221;</p>
<p>Hua Qianjun looked at Gu Xijiu and sincerely said, &#8220;I understand now. Our Devil King is more capable than Miss Gu at the moment. He is a student that surpassed his teacher. Therefore, he did not worship Miss Gu as his master in the end, right?&#8221;</p>
<p>What an analysis! Gu Xijiu was too lazy to entertain him any further, so she ignored him.</p>
<p>Zhu Duqing used a fan to knock Hua Qianjun on the head. &#8220;Where did you accumulate so much nonsense? If your master learns about what you had just said, he might peel off your skin! Quickly, get back to work!&#8221;</p>
<p>Hua Qianjun was speechless. He finally grasped the subtleties of this array formation in the process of arranging the giant rocks. His attitude toward Gu Xijiu turned from skepticism to admiration. Perhaps Miss Gu&#8217;s spiritual power might not be as good as the Devil King&#8217;s, but her abilities in array formations were certainly superior.</p>
</div>
</div>
            </div>`

Using strip_tags(zi);, You'll get

// output
He had already used all the tricks in his book to try to break the array but found himself still trapped in Gu Xijiu’s simple formation.
“Shuaaa!” A big stone was suddenly moved, and Gu Xijiu appeared three feet away from the man. She glared at him and said, “It has been five minutes. What do you have to say?”
Hua Qianjun remained silent. He looked at Gu Xijiu with some respect. He was willing to own up to his loss, so he said, “I will listen to your instructions!”
“Very good; you have already delayed us for five minutes, so you must pay it back quickly. Please move the big rock over and put it here.” She pointed at a specific location.



Hua Qianjun looked at the big rock, and then looked around. He felt bad. In five minutes, Gu Xijiu and Zhu Duqing had already finished arranging at least half of the array. There were more than a dozen large boulders in different positions, and there were several poles of bamboo standing in the gaps between the rocks.
The big rock that Gu Xijiu asked him to move was the largest one in the whole cave. It was about ten tons and was located in the corner of the cave. Hua Qianjun had to do as told, so he headed over to the big rock. Fortunately, he still had a lot of energy. Hence, he managed to move the heavy boulder to its designated position without a break.
While analyzing the formation again, he seemed to feel a sense of familiarity. His heart raced as he asked, “Did you learn about array formations from the Devil King?”
He could see that Gu Xijiu and the Devil King had quite a complicated relationship. They were probably together in the past. Perhaps, the Devil King had taught her about array formations.



Gu Xijiu glanced at him with a faint smile. “Would you believe it if I told you that I am the one who taught this formation to the Devil King?”






Hua Qianjun was stunned. “How could that be?!”
Gu Xijiu leisurely replied, “Anything is possible. Besides, you hardly know me. I almost had your Devil King as my disciple before. Anyway, quickly form up the array. I am very weak, so I have to rely on both of you.”
Hua Qianjun felt like he was struck by lightning! While he was diligently moving the big rocks as quickly as he could, he asked, “Is Miss Gu much older than the Devil King?”
Gu Xijiu kept silent for a moment. This had always caused her trouble in the past. Before she answered, Zhu Duqing laughed out loud. “That’s funny! In this world, people are respected by their capability, not by age. Take me, for instance. I am much older than Miss Gu, but I also got her to be my master. Perhaps your Devil King used to be less capable than Miss Gu, so it is not surprising that he would consider her as his master.”
Hua Qianjun looked at Gu Xijiu and sincerely said, “I understand now. Our Devil King is more capable than Miss Gu at the moment. He is a student that surpassed his teacher. Therefore, he did not worship Miss Gu as his master in the end, right?”
What an analysis! Gu Xijiu was too lazy to entertain him any further, so she ignored him.
Zhu Duqing used a fan to knock Hua Qianjun on the head. “Where did you accumulate so much nonsense? If your master learns about what you had just said, he might peel off your skin! Quickly, get back to work!”
Hua Qianjun was speechless. He finally grasped the subtleties of this array formation in the process of arranging the giant rocks. His attitude toward Gu Xijiu turned from skepticism to admiration. Perhaps Miss Gu’s spiritual power might not be as good as the Devil King’s, but her abilities in array formations were certainly superior.