Develop Reference

hidden property not reflecting immediately in angular 10

I want to hide a div on condition, so I used hidden property like
<div [hidden]="isControlDisplayed()?false:true">
isControlDisplayed() method returns true/false based on some other dropdown(select) control in the form group . so when this method returns false it doesn't reflect immediately , it reflects only after I click somewhere else on window.
I have one observation like angular calls method only on some actions on window , is it something like this. how can I solve this issue. can somebody help me.
Thank you

Use the *ngIf directive.
<div *ngIf="isControlDisplayed();">

SET the value of a Shopify Option Selector / change selected variant via javascript

I am building a custom "subscription builder" where customers select options, proceed to the next step and at the end click checkout; their options reflected in the variant selected.
The way Im going about this is by hiding shopify's selectors and setting them manually using $().val(); This accurately changes the selectors (checking in inspector), but Shopify does not recognize these changes for some reason and so the product added to the cart is the default. I am obviously missing something - is this even possible?
[Code Redacted for uselessness]
Thank you!

Basically,
Shopify's option_selection.js controls this and has a "Product" and "OptionSelector" object.
OptionSelector has a function selectVariant(id, selector) that will properly set it given you have the full variant identifier.
In your product_form.liquid you will see a place that does new OptionSelector(args). You simply save what it returns, i.e.
selector = new OptionSelector(...);
then you can do
selector.selectVariant("123456789", selector);
This will properly set the variant for the checkout button. You can then either hide the 'shopify' selectors with css / js or keep them or modify the option_selection.js code yourself by downloading from here.
Furthermore, I've discovered more useful things one can do:
selector.selectors[index].element.value {get; set;} //much cleaner method of accessing selector elements
selector.product.getVariant(selector.selectedValues()).id // gets the variant id for you so you do not need to hardcore them in
EDIT: Dave has kindly pointed out that
$(element).val(newValue).trigger('change');
Would have done what I wanted, but points out (and I agree) that using OptionSelector is more of a robust method.

Two way binding for checkbox inside an accordion not workiing

In my angular 1.5 html5 application, I have an accordion group and inside it's body I have Couple of check-boxes. Since direct scope binding will not work inside accordion, I'm using ng-click event as attached.
This works as expected, I'm getting click events with correct value.
I have another reset button on screen, when user clicks this button I have to reset all filters including the checkbox inside the accordion. Even after I reset the model value to false, checkbox still shows as checked. I know this is because the binding is not there.
How can I update the checkbox value from javascript. Is there any angular way. I'm not a big fan of JQuery.
Regards,
Nixon

We faced a similar issue with the data bindings while using accordian.
Instead of using directly model variable, we created an object of it.
For eg, instead of using $scope.includeLocalParties, try using $scope.checkbox.includeLocalParties.
Also initialize it in your controller. Something like this:
$scope.checkbox = { includeLocalParties : false};
Hope it helps!

React render, change radio button programmatically

I was creating a Dropdown component for React. Inside the dropdown, I have a form of radio group buttons.
<DropdownButton />
<DropdownForm />
In the DropdownButton, I have an state to know if it is open or not. Depends on that, DropdownForm it's hidden or not (using display: none).
The use case is: User selects a radio button, click apply and something happen. However, if user selects some radio button, and mouse out the dropdown (without clicking the apply button), the one that is selected should be the one that I get from the store.
Something like:
render: function () {
...
if(store.getSomeParam() != this.state.someParam && !this.props.isOpen){
someParam = store.getSomeParam()
}
Then the radio buttons are like:
<input checked={someParam == "something"} ... />
It doesn't really work. It re-renders but it doesn't change the button that is checked. I also tried with refs:
this.refs.myInput.getDOMNode().checked = true
But still nothing. Is this a correct behaviour?
The only solution I found so far is not using a css hiding class (display: none). So what I do is that the DropdownButton renders the DropdownForm depending on if it's open or not (so if you close it, you are forcing DropdownForm to unmount). Then when opening again, it is taking the values from the store (getInitialState) and it shows the correct radio button selected. But, I am not sure if this is the best solution and if there is any drawback in unmounting the component instead of just css hiding it.

This probably has nothing to do with React at all.
Most browsers don't validate the value of the checked attribute, but merely if it is there or not: http://jsfiddle.net/7jzm7gvw/
Just set the checked attribute to either true or null:
<input checked={someParam == "something" ? true: null} ... />

TL;DR: You must use the componentDidMount lifecycle method, not render, to work with the rendered dom nodes directly.
I was struggling with this as well, and after doing some online research I figured I might as well look into it for myself. Here's what I came up with:
Use the componentDidMount lifecycle method and update whatever you need to in there. Here's a Pen I used to prototype this, and I think it looks okay: http://codepen.io/gholts/pen/GpWzdb
You could drop this in pretty easily to what your'e working on by just putting a componentDidMount method on your object and doing it there. I used document.getElementById but you could definitely use jQuery or whatever else you wanted in there, as once the component has mounted it's available to DOM selectors.
I'm using this now to update 20 radio button groups (so it has to check a prop for three different states and update accordingly) and it loads instantly.
Hope it helps! I used the ES6 class syntax in my Pen, you should check it out if you have some time to refactor :) It's fun.
EDIT: So I figured it out, I'm a dummy. You don't need to do the whole document.getElementById business that I was doing. Just use your this.refs.whichever.getDOMNode().checked = true and it'll work, so long as you do it in componentDidMount. It works there because there is an actual DOM element on the page at that point.

jQuery UI Multiselect widget clear all check boxes

Hopefully a quick one...
I need to fire the uncheckAll event in the click event of a separate button on my page, I have tried the following:
$('.masterProviderOrgsListBox').multiselect().uncheckAll();
but this isnt a recognised method. I basically want to fire the same method that is fired when you click the "Uncheck All" box in the header.
I was previously doing this:
$('.masterProviderOrgsListBox option:selected').removeAttr("selected");
but this removes the selections on the actual multiselect rather than the jQuery UI widget.
Couldnt find anything in the documentation, any ideas?

Methods
After an instance has been initialized, interact with it by calling
any of these methods:
// example: $("#multiselect").multiselect("method_name");
...which can be found in the widgets documentation under Methods
$("#multiselect").multiselect("uncheckAll");

1) first, you need to set default value of the control.
jQuery('#multiselect').val("");
2) Then, execute below code to reset the control.
jQuery('#multiselect').multiselect("refresh");

$("#multiselectoption:selected").removeAttr("selected");
$("#multiselect").multiselect('refresh');
refresh should be call after clearing the drop down.