I need a simple Javascript function coded

Job ID: 34745134

Budget: $24 – $25 USD

I need a simple javascript function which can search a string in a .json file and return result as true or false. If the search string present in the json file content, it return true else false. You may need to use functions like fetch ( ) and Includes ( ) to code the required function.

This function need to work with a string parameter. for example: I want to search this string: 0xe1f2ce106f540fd22027c3dd0f1138240a67cbe4

So, I can use function checkAddress('0xe1f2ce106f540fd22027c3dd0f1138240a67cbe4') and the checkAddress function do the search in the .json file which will be also hosted on same location and give output as true or false.

I will use this function in a javascript file on my website.

It is simple coding job for javascript coder. Budget for this funsction is max $25 and I need it today.
Related categories: PHP JavaScript CSS HTML jQuery / Prototype