MS CRM 2016 Web API Operations - Delete a single property value

Delete a single property value:

To delete the value of a single property use a DELETE request with the property name appended to the Uri of the entity.

The following example deletes the value of the fax property of an account entity.

function UpdatAccountSingleValueUsingDELETE() {

debugger;
var clientURL = Xrm.Page.context.getClientUrl();
var AccountId =  "B3A2B300-A8AF-E511-80DD-6C3BE5A878BC";

//Single Property value  which you want to delete
var Property ="fax";

UpdatAccountSingleValue(AccountId,clientURL,Property);


}
 

function UpdatAccountSingleValue(AccountId,clientURL,Property)
{
 
var req = new XMLHttpRequest();
req.open('DELETE', clientURL + "/api/data/v8.0/accounts(" + AccountId + ")/"+Property, true);
req.setRequestHeader("Content-type","application/json");
req.setRequestHeader("OData-MaxVersion", "4.0");
req.setRequestHeader("OData-Version", "4.0");

req.onreadystatechange = function () {
 if (this.readyState == 4 /* complete */) {
  req.onreadystatechange = null;
  if (this.status == 204) {   
   console.log("Updated account with ID: "+ AccountId)
  }
  else {
   var error = JSON.parse(this.response).error;
   console.log(error.message);
  }
 }
};

req.send();
 

}