How to find certain text on child nodes using JavaScript when selecting by class name

Question

I have multiple divs with the same structure as follows, I need to check for a text within the child nodes on each main div tag

<div class="s4-wpcell-plain">
  <div class="ms-chrome">
    <div class="ms-chrome-title" id="WPWPQ6_ChromeTitle">
      <span title="My Content" id="WPTitleWPQ6" class="js-wp-titleCell">
        <h2 style="text-align:justify;" class="ms-wp-titleText">Results (0)</h2>
      </span>
    </div>
    <div wpid="50348231-8acb-4794-af32-d481915fc127" haspers="false" id="WPWPQ6" width="100%" class="ms-WPBody ms-WPBorder noindex ms-wpContentDivSpace " allowdelete="false" style="">
      <div style="display: none;">
      </div>
        <div componentid="ctl00_ctl40_g_50348231_8acb_4794_af32_d481915fc127_csr" id="ctl00_ctl40_g_50348231_8acb_4794_af32_d481915fc127_csr">  
          <div class="containerForStyle">   
            <ul class="cbs-List">                   
              <div class="ms-srch-result-noResults">There are no items to show.&nbsp;</div>     
            </ul>
          </div>
        </div>
    </div>
  </div>
</div>

In this case I'm selecting the main div with document.getElementsByClassName("s4-wpcell-plain") from there I need to check for the text "There are no items to show" and hide the corresponding main div.

I have tried to use

document.getElementsByClassName("s4-wpcell-plain").getElementsByTagName("*")

and after this, I will scan on each element on innerText but it is not getting the elements, any help would be appreciated.

Answer 1

innerText returns text content of all of its nested childrens

try:

var elements = document.getElementsByClassName("s4-wpcell-plain");
for (var i = 0; i < elements.length; i++) {
    if (elements[i].innerText.indexOf('There are no items to show') !== -1) {
        elements[i].style.display = 'none';
    }   
}

Answer 2

So here are the things you may follow,

1 - Get the list of elements with document.getElementsByTagName
2 - You can use iterate over, to filter out with the innerText && ClassName for each element

CODE:

// Get the elements list by ClassName
var allEles = documents.getElementsByTagName("*");
var templateString = 'Something';
var wantedClassName = 'ClassName';

// Iterate over all the elements
for(var key in allEles) { 
    if( (a[key].className === wantedClassName) && (a[key].innerText) === templateString ) {
        /* Do Whatever you want with this element => a[key] */
    }
}

`

Answer 3

I wasn't sure if you wanted .s4-wpcell-plain to disappear or the element that has the text so I wrote code for both objectives and commented out the part that hides .s4-wpcell-plain .

Trying to find a text in DOM is inefficient, you need to use whatever this widget uses and I can assure you it isn't the text it generates. The pattern looks like if there's no items to show the message would be in a div with the className of:

.ms-srch-result-noResults

I don't know how your widget works so I'm assuming that whenever there's no items to show then it creates:

<div class="ms-srch-result-noResults">There are no items to show.&nbsp;</div>

The Demo:

• Collects all .ms-srch-result-noResults into a NodeList with document.querySelectorAll()

• Makes that NodeList into an array with Array.from()

• Runs the array thru forEach() array method.

• On each .ms-srch-result-noResults is sets style.display to none

---

• There's also an alternate forEach() method setup to use closest() to find .s4-wpcell-plain and then hide that instead.

Demo

Details commented in Demo

 /* Collect all .ms-srch-result-noResults into a NodeList || then convert that NodeList into an array */ var noResults = Array.from(document.querySelectorAll('.ms-srch-result-noResults')); /* Run the array thru forEach() method || hide each .ms-srch-result-noResults */ noResults.forEach(function(v, i) { v.style.display = 'none'; }); /*//Or do the same thing but hide the .s4-wpcell-plain instead noResults.forEach(function(v, i) { var main = v.closest('.s4-wpcell-plain'); main.style.display = 'none'; }); */ 

 <div class="s4-wpcell-plain"> <div class="ms-chrome"> <div class="ms-chrome-title" id="WPWPQ6_ChromeTitle"> <span title="My Content" id="WPTitleWPQ6" class="js-wp-titleCell"> <h2 style="text-align:justify;" class="ms-wp-titleText">Results (0)</h2> </span> </div> <div wpid="50348231-8acb-4794-af32-d481915fc127" haspers="false" id="WPWPQ6" width="100%" class="ms-WPBody ms-WPBorder noindex ms-wpContentDivSpace " allowdelete="false" style=""> <div style="display: none;"> </div> <div componentid="ctl00_ctl40_g_50348231_8acb_4794_af32_d481915fc127_csr" id="ctl00_ctl40_g_50348231_8acb_4794_af32_d481915fc127_csr"> <div class="containerForStyle"> <ul class="cbs-List"> <li class="ms-srch-result-noResults">There are no items to show.&nbsp;</li> </ul> </div> <ul class="cbs-List"> <li class="ms-srch-result-results">There are items to show.&nbsp;</li> <li>ITEM</li> <li>ITEM</li> <li>ITEM</li> <li>ITEM</li> </ul> </div> <ul class="cbs-List"> <li class="ms-srch-result-results">There are items to show.&nbsp;</li> <li>ITEM</li> <li>ITEM</li> <li>ITEM</li> </ul> </div> <ul class="cbs-List"> <li class="ms-srch-result-noResults">There are no items to show.&nbsp;</li> </ul> </div> </div>