Angular 1.6.0 onInit how does it work?

Question

Angular

Even I can’t redeem if info is transmitted from one component,

bindings: {
            item: '=',
        },

writing

const ctrl = this;

                this.$onInit = function() {
                    ctrl.item = this.item;
                };

writes that undefined ....
So how does it work now? :)

Answer 1

What has changed is that you cannot use bindings in the body of the controller itself.
They will only appear when $onInit is called.
Those. if you need to calculate some value from the binding, you can't do it like this:

bindings : {
   item: '<'
}
function ctrl() {
    const vm = this;
    vm.coolVal = this.item * 2;
}

Because bindings will not be initialized yet. You need to do it in $onInit.

Answer 2

bindings: {
            item: '<'
        },

const ctrl = this;

                this.$onInit = function() {
                    console.log(ctrl.item);
                };

https://jsfiddle.net/jxcj2w79/2/