const key = "name";
let obj;
const res = (obj = {}, obj[key] = "John", obj);
console.log(res); // {name: "John"}I saw it in one place, and I don"t understand it. I"d like to ask how to write it
.
const key = "name";
let obj;
const res = (obj = {}, obj[key] = "John", obj);
console.log(res); // {name: "John"}I saw it in one place, and I don"t understand it. I"d like to ask how to write it
. comma operator.
first calculates the left Operand, then calculates the right Operand, and finally returns the value of the right Operand.
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