includes

Check if sorted array has a value using binary search.

Similar: includes, indexOf, [lastIndexOf].

function includes(x, v, i)
// x: a sorted array
// v: search value
// i: begin index [0]

const xsortedArray = require('extra-sorted-array');

var x = [10, 20, 20, 40, 40, 80];
xsortedArray.includes(x, 30);
// → false

xsortedArray.includes(x, 40);
// → true

References

• Array.includes() : MDN Web Docs
• Array.includes() : Sugar.js
• array-tools.contains : @75lb