Difference analysis of js character encoding functions_javascript skills

1. escape encodes characters other than ansi code 0-255 and outputs them in %u**** format, which is a unicode value. The escape method returns a string value (Unicode format) containing the content of charstring. All spaces, punctuation, accents, and other non-ASCII characters are replaced with the %xx encoding, where xx is equal to the hexadecimal number representing the character. For example, the space returned is " "
There are 69 unencoded characters in escape: *, , -, ., /, @, _, 0-9, a-z, A-Z

2. encodeURI is similar to escape , used for address bar encoding
encodeURI does not encode 82 characters: !, #, $, &, ', (,), *, ,,,-,.,/,:,;,=,?, @, _, ~, 0-9, a-z, A-Z

3. encodeURIComponent is used for address bar encoding. Encodes a text string into a valid component of a Uniform Resource Identifier (URI). It converts special characters such as Chinese and Korean into url encoding in UTF-8 format. If your page encoding is gb2312, the server will receive garbled characters.
encodeURIComponent has 71 unencoded characters:!, ' ,(,),*,-,.,_,~,0-9,a-z,A-Z

So js can use escape when using data. For address bar data, it is best to use encodeURIComponent for encoding.