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style(traverse): declare the key const when needed #12010

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style(traverse): declare the key const when needed #12010

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13ccb04
Merge pull request #1 from vuejs/dev
JASONPANGGO Apr 9, 2021
4c44894
style(traverse): declare the key const when needed
JASONPANGGO Apr 9, 2021
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4 changes: 2 additions & 2 deletions src/core/observer/traverse.js
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ export function traverse (val: any) {
}

function _traverse (val: any, seen: SimpleSet) {
let i, keys
let i
const isA = Array.isArray(val)
if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
return
Expand All @@ -33,7 +33,7 @@ function _traverse (val: any, seen: SimpleSet) {
i = val.length
while (i--) _traverse(val[i], seen)
} else {
keys = Object.keys(val)
const keys = Object.keys(val)
i = keys.length
while (i--) _traverse(val[keys[i]], seen)
}
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