The method of passing special character (+,&) in JS _javascript skill

Background:

Today in doing a task, using jquery Ajax to pass a long string of characters, in the background of the validation has been unsuccessful, tangled with me (that string is randomly generated, expertise). Check the morning, the original is I generated the string has + number, and in the time of JS delivery, will be understood to be connected characters, to the background will be the + automatically into space, so the background of the string and the foreground generated is not the same.

Reason:

JS after the automatic resolution of special characters, such as the + number for the connector, resolved to the space,& as a variable connector, server-side acceptance of data & after the data does not show and so on.

Solution:

1, put the characters in the form, and then use JS to submit form form to the server.

2. Replaces special characters in characters with 16-character characters, and some special characters correspond to hexadecimal:

+	Space	/	?	%	&	=	#
%2b	%20	%2f	%3f	%25	%26	&3d	%23

str = str.replace (/\+/g, "%2b"); Replace the + number with hexadecimal

3, the simplest one, using the encodeURIComponent () function.

The method does not encode ASCII letters and numbers, and does not encode these ASCII punctuation marks:-_. ! ~ * ' ().

Other characters (such as:;/?:@&=+$,# the punctuation marks used to separate the URI components) are replaced by one or more hexadecimal escape sequences.