The JSON data returned from the control layer to JS has a "\" translator. How to remove it

scene ： Wrote a ajax, call url after , Returned from the control layer data yes json Format .

ajax The content is , There are notes in it ：

$.ajax({
				url : '${base}/commonDialog/applyCis5ZZCAntiReport?appNo=${(appNo)!}'+'&loanType='+loanType+
					  	'&loanAmount='+loanAmount+'&loanPurpose='+loanPurpose+'&loanTerm='+loanTerm+
					  	'&custName='+custName+'&mobile='+mobile+'&idNo='+idNo,
		        type : "post",
		       
		        success:function(res){<#--url After call , The data returned is in res in -->
		        	$("#result").empty();<#--result It's a div Of id. No need to consider -->
					var json="";
					json=JSON.stringify(res,null, 4);<#-- I don't know what it means , Should be json turn var Format Bar ！-->
					$("#result").append(json);<#-- Append the returned result to div in , At this time, the additional content is the full screen translation symbol "\">
				}
			})
		});

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Baidu has many ways , None of them solved , The most important thing is to use replacet Replace , The closest thing to the expected result is the success In the method , add ：

var json=res.replace("\\","");
$("#result").append(json);

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This method is really to remove many translation characters ”\”. But in the case of complex levels json character string , It's hard to avoid getting caught , Because, after all, it is not solved from the root cause of this situation .

js It's supporting json Format , From the background to the front end, if no data format is specified , It should default to a string , hold json Format data /toString() Printing to the console is with ”\” Of . So as long as ajax Specify the format of the returned data in ！ add “dataType:json” that will do .

type:"post"
 dataType:"json",

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