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remove duplicates from array angular

const result = Array.from(this.item.reduce((m, t) => m.set(t.name, t), new Map()).values());
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remove duplicate values in array angular

<option *ngFor="let i of taxlist | unique" [value]="i.tax_name {{i.tax_name}}   ( {{i.tax_percentage}}% )</option>
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filter out duplicate values angular

this.InstructionTypes = val.filter((item, i, arr) =>
      // filter by what prop you want, here we use certification
	  arr.findIndex((x) => x.entityTable === item.entityTable) === i);
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