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If I have a variable to pass through a URL and it has a question mark in it, do I just need to escape the question mark?
If not, how can I make sure it passes through like it's supposed to?
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What Does a Question Mark in URL Do? URLs have query strings that specify parameters through a group of characters typed into a browser to retrieve information. A question mark is not a part of the query string, but it's used to establish boundaries and is considered a separator.
In a URL, the query starts with a question mark - the question mark is used as a separator, and is not part of the query string. If you also include a question mark in the query string, this would be treated as a literal question mark (i.e. it has no significance beyond that of a regular character).
The question mark after the variable is called Optional chaining (?.) in JavaScript. The optional chaining operator provides a way to simplify accessing values through connected objects when it's possible that a reference or function may be undefined or null.
Use a backslash character \ to escape the question mark.
A question mark URL encodes as %3F. But you should use a proper encoder for the whole thing rather than manually encoding a character.
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