Html string concatenation onclick parameter passing exception

problem description

if you want to pass a json string in the parameter, it cannot be parsed

the environmental background of the problems and what methods you have tried

related codes

/ / Please paste the code text below (do not replace the code with pictures)
html + ="< span class= "iconfont icon-jian reduce" onclick= "reduceEven ("+ JSON.stringify (parameterObj) +")" > "

what result do you expect? What is the error message actually seen?

error message: Uncaught SyntaxError: Unexpected token;

Jun.16,2022

'< span class= "iconfont icon-jian reduce" onclick= "reduceEven ('+ JSON.stringify (parameterObj) +')" > '

What is the equivalent of

?

clipboard.png

clipboard.png

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