Javascript Int16Array includes()

Introduction

The Javascript Int16Array includes() method checks whether a typed array includes a certain element.

It returns true or false.

This method works the same as Array.prototype.includes(). 

Int16Array.includes(searchElement[, fromIndex]);
Parameter Optional Meaning
searchElementRequired The element to search for.
fromIndexOptional The position to begin searching for searchElement; defaults to 0.
var uint8 = new Int16Array([1,2,3]);
let a = uint8.includes(2);     // true
console.log(a);/*from w w w . j  av a 2 s .  c o m*/
a = uint8.includes(4);     // false
console.log(a);
a = uint8.includes(3, 3);  // false
console.log(a);

NaN handling 

let a = new Int16Array([NaN]).includes(NaN); // false, since the NaN passed to the constructor gets converted to 0
console.log(a);//from w  w  w.  j  a  va 2s .c  o  m
a = new Float32Array([NaN]).includes(NaN); // true;
console.log(a);
a = new Float64Array([NaN]).includes(NaN); // true;
console.log(a);



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