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Return true if a matching key exists.
bool contains( pct_string_view key, ignore_case_param ic = {}) const;
This function examines the parameters in the container to find a match for the specified key, which may contain percent escapes. The comparison is performed as if all escaped characters were decoded first.
assert( url_view( "?first=John&last=Doe" ).encoded_params().contains( "first" ) );
Linear in this->buffer().size()
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Exceptions thrown on invalid input.
Type |
Thrown On |
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Name |
Description |
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The key to match. By default, a case-sensitive comparison is used. |
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An optional parameter. If the value |