get document by id starts with in javascript

To get a document by ID that starts with a certain string in JavaScript, you can use the querySelectorAll method and filter through the returned nodes to find the ID that matches the required string pattern. Here is some code that demonstrates this approach:

index.tsx
const idPrefix = "foo-bar"; // replace with your required id prefix
const matchingNodes = document.querySelectorAll(`[id^=${idPrefix}]`);
let matchingDoc;
 
for (let i = 0; i < matchingNodes.length; i++) {
  if (matchingNodes[i].id.startsWith(idPrefix)) {
    matchingDoc = matchingNodes[i];
    break;
  }
}
 
// matchingDoc will now contain the first element with an ID that starts with the specified prefix
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In this code, we first define the ID prefix that we are searching for. We then use querySelectorAll to find all elements with an ID that starts with this prefix. We then loop through the returned nodes and check if the ID of each node starts with the prefix - if so, we assign it to matchingDoc and break out of the loop.

Note that if you have multiple elements with IDs that start with the same prefix, this code will only return the first one it finds. If you need to retrieve all elements that match the pattern, you can create an array to store them instead of assigning the first match to a single variable.