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Copy file name to clipboardExpand all lines: 1-js/04-object-basics/07-optional-chaining/article.md
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@@ -25,7 +25,7 @@ That's the expected result. JavaScript works like this. As `user.address` is `un
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In many practical cases we'd prefer to get `undefined` instead of an error here (meaning "no street").
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...And another example. In the web development, we can get an object that corresponds to a web page element using a special method call, such as `document.querySelector('.elem')`, and it returns `null` when there's no such element.
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...and another example. In Web development, we can get an object that corresponds to a web page element using a special method call, such as `document.querySelector('.elem')`, and it returns `null` when there's no such element.
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```js run
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// document.querySelector('.elem') is null if there's no element
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