Get parent id on related list new button's click. Salesforce lightning component

Get parent id on related list new button's click.Salesforce lightning component.

In this post I will explain how to get parent id from a related list New Button click.

If you are working on an object which is accessible from another object's related list so you might have a situation to get the Parent record id while creating a record from related list.

Here is code below to get parent id from url.

helper.js

getParameterByName: function(component, event, name) {

        name = name.replace(/[\[\]]/g, "\\$&");

        var url = window.location.href;

        var regex = new RegExp("[?&]" + name + "(=1\.([^&#]*)|&|#|$)");

        var results = regex.exec(url);

        if (!results) return null;

        if (!results[2]) return '';

        return decodeURIComponent(results[2].replace(/\+/g, " "));

    }

controller.js

var value = helper.getParameterByName(component , event, 'inContextOfRef');

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