sugar/range/contains.js

A Javascript utility library for working with native objects.

'use strict';

var Range = require('./internal/Range'),
    defineOnPrototype = require('../common/internal/defineOnPrototype');

defineOnPrototype(Range, {

  'contains': function(el) {
    if (el == null) return false;
    if (el.start && el.end) {
      return el.start >= this.start && el.start <= this.end &&
             el.end   >= this.start && el.end   <= this.end;
    } else {
      return el >= this.start && el <= this.end;
    }
  }

});

// This package does not export anything as it is
// simply defining "contains" on Range.prototype.