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![MING-HSIEN CHEN](https://secure.gravatar.com/avatar/359c213fc27a94b00a24606850f4dc6f?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
MING-HSIEN CHEN
11,852 Pointswhy should I use bracket instead of using dot?
when we refactor the function createLi(text), I don't understand why should we use brackets property instead of using dot property
function createLi(text){ ... element[property] = text; //why can't we use element.property? }
1 Answer
![Joseph Wasden](https://secure.gravatar.com/avatar/bca3edeeeeeeb27fc7cb1fe01cff55e9?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Joseph Wasden
20,406 PointsFrom a related post.
"You must use square brackets since you are using the string passed to the property parameter; if you use dot notation JS thinks you're looking for a property with the name property. When you put it in brackets, the property parameter gets evaluated to a string and the string is used to access the property."
https://teamtreehouse.com/community/why-do-we-need-to-use-bracket-syntax-when-calling-createelement
MING-HSIEN CHEN
11,852 PointsMING-HSIEN CHEN
11,852 PointsThanks a lot