How to remove duplicate value from an array

@flycoders_sourav wrote:

actually i want to checking at the time of pushing the value into the array. If duplicate then the value will not push.how can i do that.

public selectcity:any=[];
public test: any = [];
i want to push the whole value into the test array. when pushing the value from selectcity array at the time. i want to check If duplicate then the value will not push.how can i do that.

below my array push code:

  for(let i =0;i<this.selectcity.length;i++){

            this.test.push(this.selectcity[i]);
  }

please help me any one

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