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Jan 30, 2019
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Translate: Add comments about $watch behavior with a function #1435

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8 changes: 4 additions & 4 deletions src/v2/api/index.md
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
---
title: API
type: api
updated: 2018-12-26
updated: 2019-01-29
---

## グローバル設定
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// 関数
vm.$watch(
function () {
// everytime the expression `this.a + this.b` yields a different result,
// the handler will be called. It's as if we were watching a computed
// property without defining the computed property itself
// 式 `this.a + this.b` が異なる結果を返すたびに、ハンドラが呼び出されます。
// これは、算出プロパティを定義することなしに、その算出プロパティを監視している
// ようなものです。
return this.a + this.b
},
function (newVal, oldVal) {
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