I am aware that using the arrow syntax for a method can cause 'this' to not be mapped to the Vue instance. In my case, I am utilizing lodash.debounce and I don't think I'm using the arrow syntax here?
Encountering Error: Cannot read property '$emit' of undefined
methods: {
onChange: debounce(function(el) {
this.$emit('change', el.target.value)
}, 1000)
}
Could there be a syntax error in how I have implemented this debounce function without the use of arrow notation?
Your code seems to be functioning correctly. Is there any additional context you could provide?
One suggestion for improvement: it is typically recommended to create the debounced function per instance rather than sharing one across all instances of a component.
methods: {
onChange(e) {
this.$emit('change', e.target.value)
}
},
created() {
this.onChange = _.debounce(this.onChange, 1000)
}
Below is a functional example:
new Vue({
el: '#app',
data: {
text: '',
},
created() {
this.onClick = _.debounce(this.onClick, 1000)
},
methods: {
onClick() {
// 'this' reference is available here
this.text += 'Debounced! ';
}
}
})<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<div id="app">
<button @click="onClick">Click Me</button>
<p>{{ text }}</p>
</div>I am currently puzzled by the undefined error I encounter when attempting to access a value using dot notation. The following illustrates my point: My goal is to retrieve the value from within the nested object in the headline color array: ...
I am seeking assistance to successfully load a PHP file from a DIV call. Below is the code I have used: <html> <head> </head> <body> <script class="code" type="text/javascript"> $("#LoadPHP").load("fb_marketing ...
For my react-redux project, I utilized json-server as the server for managing orders. The status of each order is saved in the state within UiReducer and is then accessed in the "OrderStatusPage". The current NODE_ENV configuration is set to "development". ...
I have developed two custom directives known as app-content and app-content-item. These directives are intended to be utilized in upcoming projects to provide a basic structure with simple styling. They will be incorporated into a module and should be nest ...
Is it possible to manually control the opening and hiding of the navbar when the toggle button is clicked in bootstrap 4? Currently, my navbar automatically opens and closes when clicking the toggle button. Any suggestions on how to modify this behavior wo ...
I have a factory setup like this: angular.module("myServices") .factory("$service1", ["$rootScope", "$service2", function($rootScope, $service2){...})]; Now I'm attempting to test it, but simply injecting $service1 is resulting in an &ap ...
I've been doing online research for the past few weeks and have come across similar solutions to what I'm trying to achieve. However, due to my limited knowledge of javascript, I am struggling to implement them effectively. My goal is to have an ...
Currently working on a project that involves implementing a static Google map on a webpage. The challenge I am facing is resizing the map dynamically when the page size changes. In order to achieve this, I have created a function that triggers on page resi ...
I am facing a situation with my kendo grid where I need to insert two checkbox columns in addition to the existing set of columns. <script id="sectionPage" type="text/kendo-tmpl"> @(Html.Kendo().Grid<SectionPageModel>() .Na ...
How to fix jQuery window.on hashchange issue when clicking on the same hash? See the code snippet below for a potential solution: function addMargin() { let header = $('.header__wrapper').outerHeight(); let headerHeight = $('body& ...
I have been attempting to implement vue-router in a Vue.js/Laravel project. My project consists of two simple pages: home page: https://i.stack.imgur.com/GmHOR.png about page (single-page scrolling): https://i.stack.imgur.com/CZDnZ.png The files used ...
Lately, I've been experimenting with a code snippet I found on this fiddle: http://jsfiddle.net/unbornink/LUKGt/. The goal is to change the content of a div when clicking on links to see if it will work on my website. However, no matter which link I c ...
I have a table that is populated with data retrieved from an API. Each cell in the table contains multiple pieces of data. Below is the code used to create the table: <td class="myclass"> <?php $myvar = explode(" ", $json["data"]); ...
After removing the header information from the XML file, the issue was resolved. Internet Explorer did not handle it well but Firefox and Chrome worked fine. An error occurred when trying to sort nodes in IE: SCRIPT5007: Unable to get value of the proper ...
Currently in Vue, I have a collection of strings that I am displaying using the v-for directive within a "list-group" component from Bootstrap. My goal is to apply an "active" state when an item is clicked, but I am struggling to identify a specific item w ...
After making some edits to another file and increasing the complexity of my application, a tracker function that was previously working fine is now experiencing issues. It is no longer returning any data for vrLoan fundingData This is a snippet of my c ...
I'm working on a school project using plain JavaScript and needed a tree view select with multiple layers. After extensive searching, I stumbled upon this tool. It's working smoothly, but the one thing that has me stumped is how to change its va ...
I'm attempting to integrate Ruby into the JS.erb file, where I need access to the @user object and its relationships. Instead of converting to a JSON object, I prefer the ERB to precompile on the server-side. My goal is to iterate in the JS file rat ...
I am faced with a challenge involving two files: index.html and index2.html. Both of these files reside in the same directory on a local machine, without access to PHP or other server-side languages. My goal is to extract the <title>Page Title</ ...
http://plnkr.co/edit/gB7MtVOOHH0FBJYa6P8t?p=preview The example above demonstrates a parent-child controller setup. In the child controller, when a button is clicked, it displays the div showPop and emits an event to the $rootScope. Upon receiving this e ...