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--- javascript [2020/09/30 03:41]
127.0.0.1 external edit
+++ javascript [2020/10/05 03:09] (current)
paul [Object Spread Operator]
@@ Line 336: / Line 336: @@
 to explicitly pass a ''this'' object as the first parameter.
+===== Object Spread Operator =====
+The Object Spread Operator is ''...'' and it allows you to spread concatenate lists in a one line. [[https://github.com/tc39/proposal-object-rest-spread|Link]].
+I was really confused about it when I saw it used to spread out properties of an object that was returned by a function [[https://vuex.vuejs.org/guide/state.html#object-spread-operator|here]].
+<code javascript>
+computed: {
+  localComputed () { /* ... */ },
+  // mix this into the outer object with the object spread operator
+  ...mapState({
+    // ...
+  })
+}
+</code>