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perf(性能优化): 优化滚动性能（表格列/数据相对较多，但是未启用虚拟列表的情况下会产生性能问题） #2722

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perf(性能优化): 优化滚动性能（表格列/数据相对较多，但是未启用虚拟列表的情况下会产生性能问题） #2722

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20 changes: 18 additions & 2 deletions packages/table/src/table.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2710,7 +2710,14 @@ export default defineComponent({
colRest.$index = $index
}
})
reactData.tableColumn = tableColumn
if (reactData.tableColumn.length !== tableColumn.length) {
reactData.tableColumn = tableColumn
} else {
const columnIds = new Set(reactData.tableColumn.map(item => item.id))
if (!tableColumn.map(item => item.id).every(id => columnIds.has(id))) {
reactData.tableColumn = tableColumn
}
}
}

const handleUpdateColumn = () => {
Expand Down Expand Up @@ -6376,7 +6383,16 @@ export default defineComponent({
rest.$index = $index
}
})
reactData.tableData = tableData
if (tableData.length !== reactData.tableData.length) {
reactData.tableData = tableData
} else {
const reactDataIds = new Set(reactData.tableData.map(row => getRowid($xeTable, row)))
if (
!tableData.map(row => getRowid($xeTable, row)).every(rowid => reactDataIds.has(rowid))
) {
reactData.tableData = tableData
}
}
return nextTick()
},
/**
Expand Down
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