js merge and dedup tow array

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1400/04/13 11:19:48 (505)


	// merge tow tags (old and new) 

	var oldTags = [1,2,3,4] ; 

	var newTags = [2,3,5,7] ; 

        var tags    = oldTags.concat(newTags); 

	// remove duplicated items

        var newTags  = (tags) ? tags.filter((item, pos) => tags.indexOf(item) === pos) : '' ;

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