I have an XML like this stored in a String variable in JavaScript :
<metadata>
<a>...</a>
<b>...</b>
<c>...</c>
</metadata>
<data>
<a>...</a>
<b>...</b>
<c>...</c>
</data>
Since a valid XML can only have single root tag, mine cannot be called valid as it has two root tags: metadata & data. I would like to completely remove the metadata tag, as I don't have any use of it either.
I read about array.Shift() command, which removes the first element of an array. But since I have an XML, how do I do the same? Again, would just like to remove the <metadata> tag, so the result XML looks like this (given below).
<data>
<a>...</a>
<b>...</b>
<c>...</c>
</data>
Use a DOMParser
const xmlString = `
<metadata>
<a>...</a>
<b>...</b>
<c>...</c>
</metadata>
<data>
<a>...</a>
<b>...</b>
<c>...</c>
</data>`;
const parser = new DOMParser();
const doc1 = parser.parseFromString(`<root>${xmlString}</root>`, "application/xml");
doc1.querySelector('metadata').remove()
console.log(doc1.documentElement.innerHTML)Since you talk about a string, just search for '<data>' and get the substring from that position to the end:
let str = `
<metadata>
<a>...</a>
<b>...</b>
<c>...</c>
</metadata>
<data>
<a>...</a>
<b>...</b>
<c>...</c>
</data>
`
let data = str.substring(str.search('<data>'))
console.log(data)Or search for '</metadata>' plus two new line characters to find the start of :
let data = str.substring(str.search('</metadata>\n\n') + 13)