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前端数组常见用法整理 #25

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ren8179 opened this issue Nov 12, 2021 · 0 comments

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ren8179 commented Nov 12, 2021

数组合并并去重

this.tableData = this.unique(this.tableData.concat(this.multipleSelectionAll))
 
unique(arr) {
  const res = new Map();
  return arr.filter((arr) => !res.has(arr.id) && res.set(arr.id, 1))
},

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