Vue removes the same part of the two arrays

	var a = [1,2,3,4,5];
	var b = [5,2];
	
	a.forEach((itemA, indexA) => {
    
    
		 b.forEach(itemB => {
    
    
			 if (itemA === itemB) {
    
    
				  a.splice(indexA, 1, "deleteMe")
			 }
		 })
	 })
	 a= a.filter(item => item !== "deleteMe")
	 console.log("a: ",a);