如何解決vue 賦值后原數據隨賦值后的數據的變化而變化

錯誤示例

this.leftColumn = {...this.Columns};
this.rightColumn = {...this.Columns};
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正確示例

this.leftColumn = JSON.parse(JSON.stringify(this.Columns));
this.rightColumn = JSON.parse(JSON.stringify(this.Columns));
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