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This is my list. How to Delete a record using Student Name not using ID.This is the code which I tried delete function using ID.

$("#btnDeleteStudent").click(function()
{
var IdNo = $("#txtDeleteStudent").val(); 

$.ajax({
url: _spPageContextInfo.webAbsoluteUrl + "/_api/web/lists/getByTitle('Student Details')/items("+IdNo+")", 
type: "DELETE",  
        headers: {  
            "Accept": "application/json;odata=verbose" ,
    "contentType": "application/json;odata=verbose" ,
    "X-RequestDigest": $("#__REQUESTDIGEST").val(),
            "IF-MATCH": "*",
             "X-HTTP-Method": "DELETE"
        },  
        success: function(data) {  
            alert("Item Deleted successfully");  
        },  
        eror: function(data) {  
            alert("An error occurred. Please try again.");  
        }  
    }); 
});