Cypress+TS, how to get second text that wrapped double quotes?

I got this web page to test claim number. But I am not able to extract the same.

<h1 class="jss41 undefined" style="text-transform: capitalize; display: flex; align-items: center; margin-bottom: 0.5rem;">
"Claims #"
"75078"
</h1>

The xpath I am trying to get is

export const getClaimsHeader = () => cy.xpath("//h1[contains(@class,'undefined')]")

This is the code I am trying to get the claim Number

  getClaimsHeader()
  .each((header) => {
    claimNum = header.text().split('#');
    actualClaimNumber = claimNum[1];
    
  })
  .then(() => {
    expect(claimNumber).to.equal(actualClaimNumber);
  });

But actualClaimNumber is displayed as blank because header.text() is returning only "Claims #"

You may have textNodes inside the <h1> although it's not apparent from the HTML.

If so, here is a function to try out which should return all the textNodes in an array:

function getTextNodes($el) {
  const childNodes = $el[0].childNodes
  const textNodes = [...childNodes].filter(child => child.nodeType === Node.TEXT_NODE)
  const texts = textNodes.map(textNode => textNode.nodeValue.trim())
  return texts
}

Use it like this

getClaimsHeader().each((header) => {
  const texts = getTextNodes(header);
  console.log(texts)              // check which part of the array is the number
  const claim = texts[1]          // for example
})

Since you're using .each() I presume there are multiple headers?

If so, your .then() does not receive each claim number, only the last one.