yoke
JS utility to create and reuse functions bindings for safe unregistering from event dispatchers
Example
function add(value) {
this + value;
}
// traditional approach
var addTwo_1 = add.bind(2);
var addTwo_2 = add.bind(2);
console.log(addTwo_1(3) + addTwo_2(1)); // 8
console.log(addTwo_1 === addTwo_2); // false - native function binding always creates new functions everytime you bind
// yoke approach
var yoke = require('yoke');
var addTwo_1 = yoke(add, 2);
var addTwo_2 = yoke(add, 2);
console.log(addTwo_1(3) + addTwo_2(1)); // 8
console.log(addTwo_1 === addTwo_2); // true - yoke saved bound function reference to its internal storage, so next time you create binding with same params it would return existing instance