The following example shows all the parts that a URI can possibly contain. The encodeURI() function does not encode characters that have special meaning (reserved characters) for a URI. Both encodeURI() and encodeURIComponent() do not encode the characters -.!~*'(), known as "unreserved marks", which do not have a reserved purpose but are allowed in a URI "as is". Note that decoding a full URI might change its meaning as some of the decoded characters could be. The characters on the second line are characters that may be part of the URI syntax, and are only escaped by encodeURIComponent(). decodeURIComponent is the best practice tool for this job. Because lone surrogates in UTF-16 do not encode any valid Unicode character, they cause encodeURI() to throw a URIError.ĮncodeURI() escapes all characters except: A–Z a–z 0–9 - _. Use decodeURIComponent: var decoded decodeURIComponent (foo) decodeURI has some issues as you are seeing. The encodeURI() function escapes characters by UTF-8 code units, with each octet encoded in the format %XX, left-padded with 0 if necessary. Warning: unreachable code after return statementĮncodeURI() is a function property of the global object.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.Now I am taking the value of the callBackUrl in my js method, then decoding it. TypeError: "x" is not a non-null object I am using Javascript method decodeURIComponent to decode an encoded URL.In many cases using a string makes the code. As of now, URL objects are often more convenient, but strings can still be used as well. In old times, before URL objects appeared, people used strings for URLs. Synta圎rror: Using to indicate sourceURL pragmas is deprecated. The URL became longer, because each cyrillic letter is represented with two bytes in UTF-8, so there are two.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.Unicode character class escape: \p after property list.Character class escape: \d, \D, \w, \W, \s, \S.Enumerability and ownership of properties.Review it again to see and understand the differences. In the example provided above, you have seen the same URI, both encoded and decoded. This value contains textual data, therefore it is classified as a string. decodeURI() is a built-in function in JavaScript that is used to decode a URI (Uniform Resource Identifier) that has been previously encoded with the. To put it simply, it is represents the decoded URI. Return ValueĪs most JavaScript functions, decodeURIComponent() has a return value. In other words, the function won't know which URI to decode if you won't specify the previous URI, created with encodeURIComponent. The only feature to bear in mind is that the URI parameter must be included. Nevertheless, you should remember the set capitalization of it if you want your code to work and be less difficult to manage:Īs you can see, you should not have any issues when handling decodeURIComponent parameters. It is easy to understand even for those who are only starting to learn to code. The standard syntax for JavaScript decodeURIComponent function is not complicated.
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