JavaScript Error Codes

is not a function JavaScript Programming Language This error means JavaScript found the variable you referenced, but it is not a … is not defined JavaScript Programming Language This error means JavaScript encountered a name it has never heard of. The … Cannot assign to read only property JavaScript Programming Language This error means you tried to change a property that JavaScript has been told … Cannot read properties of null JavaScript Programming Language This error means you tried to access a property or method on a variable that is … Cannot read properties of undefined JavaScript Programming Language This error means you tried to access a property or method on a variable that is … Cannot use import statement outside a module JavaScript Programming Language This error means you used the import keyword, but JavaScript is not treating … CORS error JavaScript Programming Language CORS stands for Cross-Origin Resource Sharing. When your webpage tries to … Failed to fetch JavaScript Programming Language This error appears when JavaScript's fetch() function tried to make a network … Invalid or unexpected token JavaScript Programming Language This error means JavaScript found a character in your code that it does not … Maximum call stack size exceeded JavaScript Programming Language This error means a function kept calling itself (or a chain of functions kept … Out of memory JavaScript Programming Language An out of memory error means JavaScript tried to allocate more memory than the … Uncaught Promise rejection JavaScript Programming Language This warning means a Promise failed (was rejected) but no code was in place to … Unexpected end of input JavaScript Programming Language This error means JavaScript reached the end of your code file while still … Unexpected token JavaScript Programming Language An 'Unexpected token' error means JavaScript found a character or symbol it did … Assignment to constant variable JavaScript Programming Language This error means you tried to change the value of a variable declared with … Cannot set properties of null JavaScript Programming Language This error means you tried to set a property on a variable that is null — … Cannot set properties of undefined JavaScript Programming Language This error means you tried to set a property on a variable that is undefined. … Cannot set property (getter-only) JavaScript Programming Language This error means you tried to assign a value to a property that is read-only — … EvalError JavaScript Programming Language An EvalError is related to the eval() function in JavaScript. In modern … Illegal invocation JavaScript Programming Language Illegal invocation means you called a function but the 'this' context inside … Missing formal parameter JavaScript Programming Language Missing formal parameter is a SyntaxError that means your function definition … RangeError JavaScript Programming Language A RangeError means a value is outside the allowed range for a particular … Reduce of empty array with no initial value JavaScript Programming Language This error happens when you call .reduce() on an empty array without providing a … ReferenceError JavaScript Programming Language A ReferenceError means you are trying to use a variable that JavaScript cannot … SyntaxError JavaScript Programming Language A SyntaxError means JavaScript cannot understand your code because something is … TypeError JavaScript Programming Language A TypeError means JavaScript tried to do something with a value that is the … URIError JavaScript Programming Language A URIError means you passed an invalid web address (URI) to one of JavaScript's … X is not iterable JavaScript Programming Language This error means you tried to loop over something that cannot be looped over. …