javascript - Is there a way to check if an array holds more than one value? -

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for example, if needed code have set of numbers in array list happen? example array [1,3,4,5,9]. there way check , see if array contained these integers @ once , in same order?

var arraysearch = function (subarray,array ) {     var = -1;     return subarray.every(function (v) {             if(i != -1) {                 i++;                 return (array.indexof(v) === i)             }             = array.indexof(v);             return  >= 0;     }); };  var arr = [1,3,4,5,9];  console.log(arraysearch([4,5],arr))

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