We Keep Coding

Why doesn't the bind() work for a function inside another function which is inside the object?

I have a question about .bind() function.
I have this code and it outputs Window object and I don't understand why. Could you explain to me why bind(this) had no effect on the function?
let vakho = {
name: "salome",
a: function () {
let something = function () {
return this;
}
something.bind(this)
return {
f: function () {
return something();
}
}
},
}
console.log(vakho.a().f())

.bind returns a new function with the attached context. You need to assign the result to the something again.
let vakho = {
name: "salome",
a: function () {
let something = function () {
return this;
};
something = something.bind(this); // Assign to the something
return {
f: function () {
return something();
}
}
},
}
console.log(vakho.a().f());
console.log(vakho.a().f().name);

Require js, must reference the required object two times

I define a script with no dependencies with require:
define([], function () {
var obj = {
doSomething: function() {}
}
return : {
obj : obj
}
});
However when I have to use doSomething like this:
require(['obj'], function (obj) {
obj.obj.doSomething();
});
What am I doing wrong, so I can't just use
obj.doSomething();

Try:
define([], function () {
var obj = {
doSomething: function() {}
}
return obj;
});

javascript calling parent method from child

I have the following object:
var party =
{
food:
{
serve: function () {
// I want to call turnOff method from here
}
cleanUp: function () {
}
}
music:
{
turnOff: function () {
}
}
}
So as the comment points out, I want to call the turnOff method from the music object, how can I do this? this refers to the food object but I need to access the music object...

var party =
{
food:
{
serve: function () {
party.music.turnOff();
},
cleanUp: function () {
}
},
music:
{
turnOff: function () {
}
}
}

Use a constructor instead of a literal with a variable referencing the parent object
var party = new (function()
{
var self = this;
this.food =
{
serve: function () {
self.music.turnoff();
},
cleanUp: function () {
}
}
this.music =
{
turnOff: function () {
}
}
})();

Call it as party.music.turnOff().
FYI, your above code block isn't valid. You're missing some commas - after the serve and food closing braces.

Javascript variable scope

Is it possible for me to call selectCompanyJump(this) internally without calling it from App.site.profile?
Instead of doing App.site.profile.selectStateJump(this); can I do like parent.selectStateJump(this); without reassigning this outside of the .change() call?
$(document).ready(function () {
App.site = function () {
return {
init: function () {
this.profile.init();
},
profile: function () {
var profile;
return {
init: function () {
profile = $('div#profile');
$('select[name="company_id"]', profile).change(function () {
App.site.profile.selectCompanyJump(this);
});
$('select[name="state_id"]', profile).change(function () {
App.site.profile.selectStateJump(this);
});
},
selectCompanyJump: function (select) {
$(select.parent()).submit();
},
selectStateJump: function (select) {
$(select.parent()).submit();
}
}
}()
}
}();
App.site.init();
});

You can reference the "this" scope you want as another variable outside change() function definitions:
profile: function () {
var profile;
return {
init: function () {
profile = $('div#profile');
var self = this;
$('select[name="company_id"]', profile).change(function () {
self.selectCompanyJump(this);
});
$('select[name="state_id"]', profile).change(function () {
self.selectStateJump(this);
});
},
selectCompanyJump: function (select) {
$(select.parent()).submit();
},
selectStateJump: function (select) {
$(select.parent()).submit();
}
}
}()

Assuming that you are just using the select argument of your functions to reference the element that triggered the event you could just pass a pointer to the event binder and then use the this keyword.
profile: function () {
var profile;
return {
init: function () {
profile = $('div#profile');
$('name="state_id"', profile).change(this.selectStateJump);
},
selectStateJump: function () {
$(this).parent().submit();
}
}

you can do the following
$(document).ready(function () {
App.site = function () {
var me = this;
me.selectStateJump = function selectStateJump (select) {
$(select.parent()).submit();
}
return {
....
selectStateJump: selectStateJump
}
and you'll be able to call just me.selectStateJump()
EDIT:
actually below would be enough
$(document).ready(function () {
App.site = function () {
function selectStateJump (select) {
$(select.parent()).submit();
}
return {
method : function(select) {
selectStateJump(select);
}
selectStateJump: selectStateJump
}

Variable Scope: cross-class function call

I have a vehicle and a product object and I need vehicle to call a function within product.... I can't seem to figure it out, what should I do here?
var vehicle = function () {
return {
init: function () {
var that = this;
jQuery('.vehicle-year-profile .options .delete').bind('click', function (e) {
e.preventDefault();
that.remove(jQuery(e.currentTarget).parents('.vehicle-year-profile'));
});
jQuery('.vehicle-year-profile .options .edit').bind('click', function (e) {
e.preventDefault();
that.edit(jQuery(e.currentTarget).parents('.vehicle-year-profile').attr('id'));
});
jQuery('#association-detail .save').bind('click', function (e) {
e.preventDefault();
that.save();
});
},
edit: function (id) {},
save: function () {},
remove: function (el) {},
reset: function () {}
}
}();
var product = function () {
return {
refreshHistory: function () {}
};
}();

Have you tried
product.refreshHistory();
?? The variable "product" is global (or at least relatively global), so code inside the "vehicle" object can refer to it directly.