DecodeURIencodedURIString

DecodeURIencodedURIString is a function used in JavaScript to decode a Uniform Resource Identifier (URI) previously created by the encodeURI or encodeURIComponent function. URIs are strings of characters used to identify resources on the internet, and they can contain special characters that need to be encoded to ensure they are transmitted correctly.

The encodeURI function encodes all characters except for those that have a special meaning in URIs, such as colons, slashes, question marks, and ampersands. The encodeURIComponent function, on the other hand, encodes all characters except for those that are allowed in URIs without any special meaning, such as letters, digits, and a few punctuation marks.

When a URI is encoded, special characters are replaced with a percent sign (%) followed by two hexadecimal digits representing the character's Unicode value. For example, the space character is encoded as %20. To decode a URI, the percent-encoded characters are replaced with their corresponding characters.

The decodeURI function is used to decode a URI that was encoded with the encodeURI function. It decodes all percent-encoded characters in the URI, except for those that are not encoded by encodeURI. For example, if a URI contains a percent sign that was not encoded by encodeURI, it will not be decoded by decodeURI.

Similarly, the decodeURIComponent function is used to decode a URI that was encoded with the encodeURIComponent function. It decodes all percent-encoded characters in the URI, regardless of whether they were encoded by encodeURIComponent or not.

In summary, decodeURIencodedURIString is a function used in JavaScript to decode a URI that was previously encoded with the encodeURI or encodeURIComponent function. It replaces percent-encoded characters with their corresponding characters, allowing the URI to be used correctly in web applications.