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【the waiter】announcement:

Url encode / decode
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Function introduction

  1. Use JavaScript's encodeURI and encodeURIComponent for encoding.
  2. Use JavaScript's decodeURIComponent to decode.

Method Introduction

encodeURI

  • Purpose: Used to encode the entire URI. For example: "http://example.com/This is a test? name= Zhang San ".
  • Encoding rules: Only characters with special meaning in the URI will be encoded, such as spaces (encoded as %20),#(encoded as %23), etc. The following characters will not be encoded: A-Z,a-z,0-9,-,_,.!,~,*, '();/?:@&=+$,`,Because these characters have a specific meaning in the URI.

encodeURIComponent

  • Purpose: Used to encode part of the URI (such as the values of query parameters), rather than the entire URI. For example: "name= Zhang San &age=25".
  • Encoding rules: encodeURIComponent encodes all non-alphanumeric characters, including ;,/,?:,@,&,=,+,$,,, etc., because these characters have no special meaning in the URI component, they are all encoded.

decodeURIComponent

  • Purpose: Used to decode individual URI components (such as the values of query parameters) and restore the characters encoded by encodeURIComponent to the original characters.
  • Decoding rules: decodeURIComponent will decode all characters encoded by encodeURIComponent and convert the encoding starting with % back to the corresponding character. For example,%20 will be decoded as spaces, and %3D will be decoded as =.