For example, distinguishing between letters and digits.
Character classesĭistinguish different types of characters. AssertionsĪssertions include boundaries, which indicate the beginnings and endings of lines and words, and other patterns indicating in some way that a match is possible (including look-ahead, look-behind, and conditional expressions). The following pages provide lists of the different special characters that fit into each category, along with descriptions and examples. In the string "cbbabbbbcdebc", this pattern will match the substring "abbbbc". When the search for a match requires something more than a direct match, such as finding one or more b's, or finding white space, you can include special characters in the pattern.įor example, to match a single "a" followed by zero or more "b"s followed by "c", you'd use the pattern /ab*c/: the * after "b" means "0 or more occurrences of the preceding item."
#REGEX WILDCARD CODE#
Warning: unreachable code after return statement. Warning: -file- is being assigned a //# sourceMappingURL, but already has one. TypeError: X.prototype.y called on incompatible type. TypeError: setting getter-only property "x". TypeError: Reduce of empty array with no initial value. TypeError: property "x" is non-configurable and can't be deleted. TypeError: invalid assignment to const "x". TypeError: invalid 'instanceof' operand 'x'. TypeError: cannot use 'in' operator to search for 'x' in 'y'. TypeError: can't redefine non-configurable property "x". TypeError: can't delete non-configurable array element. TypeError: can't define property "x": "obj" is not extensible. TypeError: can't convert BigInt to number. TypeError: can't assign to property "x" on "y": not an object. TypeError: "x" is not a non-null object. Synta圎rror: Using to indicate sourceURL pragmas is deprecated. Synta圎rror: unterminated string literal. Synta圎rror: unparenthesized unary expression can't appear on the left-hand side of '**'. Synta圎rror: unlabeled break must be inside loop or switch. Synta圎rror: Unexpected '#' used outside of class body. 
Synta圎rror: test for equality (=) mistyped as assignment (=)?. Synta圎rror: redeclaration of formal parameter "x". Synta圎rror: missing = in const declaration. Synta圎rror: missing } after property list. Synta圎rror: missing } after function body. Synta圎rror: missing ] after element list. Synta圎rror: missing ) after argument list. Synta圎rror: missing : after property id. Synta圎rror: invalid regular expression flag "x". Synta圎rror: invalid assignment left-hand side. Synta圎rror: identifier starts immediately after numeric literal. Synta圎rror: function statement requires a name. Synta圎rror: for-in loop head declarations may not have initializers. Synta圎rror: continue must be inside loop. Synta圎rror: cannot use `?` unparenthesized within `||` and `&` expressions. Synta圎rror: await is only valid in async functions, async generators and modules. Synta圎rror: applying the 'delete' operator to an unqualified name is deprecated. Synta圎rror: a declaration in the head of a for-of loop can't have an initializer. Synta圎rror: "x" is a reserved identifier. 
Synta圎rror: "use strict" not allowed in function with non-simple parameters.Synta圎rror: "0"-prefixed octal literals and octal escape seq.ReferenceError: reference to undefined property "x".ReferenceError: deprecated caller or arguments usage.ReferenceError: can't access lexical declaration 'X' before initialization.ReferenceError: assignment to undeclared variable "x".RangeError: x can't be converted to BigInt because it isn't an integer.RangeError: repeat count must be non-negative.RangeError: repeat count must be less than infinity.RangeError: argument is not a valid code point.Error: Permission denied to access property "x".Enumerability and ownership of properties.
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