Check if section prop is defined

lorensr · lorensr · commit 599a9a0a463d · 2018-10-14T18:03:50.000-04:00
diff --git a/src/components/Section.js b/src/components/Section.js
@@ -27,9 +27,12 @@ class Section extends Component {
   }
 
   componentDidMount() {
-    this.viewedSection(get(this, 'props.section.id'))
     window.addEventListener('scroll', this.handleScroll)
-    this.updateScrollPosition()
+
+    if (this.props.section) {
+      this.viewedSection(this.props.section.id)
+      this.updateScrollPosition()
+    }
   }
 
   componentWillUnmount() {

Original file line number	Diff line number	Diff line change
`@@ -27,9 +27,12 @@ class Section extends Component {`
`27`	`27`	`}`
`28`	`28`
`29`	`29`	`componentDidMount() {`
`30`		`- this.viewedSection(get(this, 'props.section.id'))`
`31`	`30`	`window.addEventListener('scroll', this.handleScroll)`
`32`		`- this.updateScrollPosition()`
	`31`	`+`
	`32`	`+ if (this.props.section) {`
	`33`	`+ this.viewedSection(this.props.section.id)`
	`34`	`+ this.updateScrollPosition()`
	`35`	`+ }`
`33`	`36`	`}`
`34`	`37`
`35`	`38`	`componentWillUnmount() {`