我想将数组值存储在隐藏的输入字段中

Question

const arr = [];
document.querySelector("#lengthParams").setAttribute('value',arr); 

<input type="hidden" id="lengthParams" name="lengthParams" value="">

the array is not null -> (3) ["0.00", "15.00", "15.00"] phpstorm suggests "Argument type any[] is not assignable to parameter type string". can anyone please suggest what changes should I make?

Answer 1

let arr=['12','34','45']
arr=arr.toString()
document.querySelector("#lengthParams").setAttribute('value',arr);

You can make use of this