TypeError: Cannot read properties of undefined (reading 'x') in JavaScript: 10 Causes and Fixes

"TypeError: Cannot read properties of undefined (reading 'x')" means you tried to read .x from a value that is undefined. The name in brackets is the property you asked for; the real problem is the thing before the dot. In user.address.city, if the error says (reading 'city'), then user.address is undefined. The fix is to find out why that value... Weiterlesen: TypeError: Cannot read properties of undefined (reading 'x') in JavaS…