update placeholder example
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@@ -17,7 +17,9 @@ export default {
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data() {
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data() {
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return {
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return {
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extensions: [
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extensions: [
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new PlaceholderExtension(),
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new PlaceholderExtension({
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emptyNodeClass: 'is-empty',
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}),
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],
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],
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}
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}
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},
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},
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