Расширение прототипа cellx

gistfile1.txt

var cellx = require('cellx');

var x = new cellx.Cell
cellx.Cell.prototype.if = function (trueCondition) {
    this.subscribe(function () {
        this.get() && trueCondition()
    });
    this.get() && trueCondition()
}


x.if(() => {
    console.log('x is truthy')
})

x.set(false);
setTimeout(() => {
    x.set(true);
}, 1000)