![]() For statement allows us to iterate over the properties of an object. Let statement allows us to change the value of this variable over time. Let's create a variable result and assign an empty string to it. We receive css object as an argument, and we have to convert this object to a string. We use this function and pass our css object to it. Let's name this utility function, toCssString. Let's create a utility function, which converts our object to a css string. We have to convert this css object to a css string. A problem we have now is that we cannot use textContent property in order to use our css object. This makes our syntax a little bit cleaner. We can use JavaScript variables and primitives directly. As we are not using a template string anymore, we don't have to use this declarations index. ![]() If we need to use unallowed characters, we have to use quotes. ![]() One important difference is that not every character is allowed. Key values in an object look almost like our css declaration block. Selector in this case is a property of css object. We create a constant with name css, and we assign our new object to this constant. JavaScript object literal is created by using curly braces. Let's try to make it more readable by using JavaScript objects. This interpolation syntax is all over the place. When I look at this declarations block, I see a lot of noise. Here, we have our css rule, we import variables, we import mixins, and we use these variables and mixins. Instructor: We have implemented the css-in-js button.
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