如何根据不同的键过滤对象并将结果保存到数组中

Question

I want to filter object based on key

var form = { code_ 1 : "C", 
             option_1 : "1321", 
             code_ 2 : "A", 
             option_2 : "1521", 
             code_ 3 : "B", 
             option_3 : "1121", 
             ...
           }

I want filter object and save into array.

code = ["C", "A", "B"]
option = ["1321", "1521", "1121"]

but I don't how because there is a number in the attribute name.

Answer 1

You could use Object.entries to transform the form to array of key-value pairs

After that, iterate through the pair, check the key string and push the value to the propriated array

 const code = []; const option = []; var form = { code_1: "C", option_1: "1321", code_2: "A", option_2: "1521", code_3: "B", option_3: "1121", }; Object.entries(form).forEach(([key, value]) => { if (key.startsWith("code")) { code.push(value); } else if (key.startsWith("option")) { option.push(value); } }); console.log({ code, option, });