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>Seeking assistance in Typescript (javascript) to ensure that the code inside the for loop completes execution before returning I have a text box where users input strings, and I'm searching for numbers following '#'. I've created a fun ...
I'm facing an issue and struggling to find a solution. My project follows the standard structure of Next JS. In the root directory, I have included a components folder. Within the components folder, there is a component with the following code: imp ...
In my current situation, I am facing a unique challenge involving multiple clients for a single user. Each client generates different reports based on their specific client id (which is easy to filter). However, there is a requirement to anonymize certain ...
Currently, I am in the process of developing a component using material-ui withStylers and defaultProps. However, I have encountered an issue where the props of the component are not being retrieved in the styles objects unless they are explicitly passed t ...
I'm fairly new to React, and I've set up a private route with an authToken passed through props from the state of App.js. The idea is that if the authToken is true, the private route should direct me to /HomePage, but whenever I log in with valid ...
Every time I visit a new route within the current session, I notice that the page loads and then takes about 2 seconds for the styles to be applied. This delay causes what is commonly known as CSS flashing or FOUC (Flash of Unstyled Content), which ultimat ...
I'm currently working on a project that involves filtering a dynamic table based on user input in a search bar. The table contains information such as name, surname, phone, and address of users. Using jQuery, I have created a form that dynamically ad ...
I'm currently working on passing a C# array to a JQuery function as a parameter. The C# code I have to call the function is: //Create an Array from filtered DataTable Column var GatepassIDs = defaultView.ToTable().AsEnumerable().Select(r => r ...
Utilizing asynchronous functions in my JS application, I've encapsulated them within my own functions that take callback inputs. One question that I have is whether or not it's necessary to use the "return" keyword when calling the callback funct ...
As a newcomer to web development and vue.js, I've been struggling to style my code effectively. Below is an example of my vue.js code where I have created markup for a profile description using figure, figcaption, and image elements. Could you please ...
While working in JavaScript, I had no issues with this code snippet. However, when I attempted to implement it in a TypeScript Project, an error surfaced. The problem seems to revolve around the fetch(...args) function call. const fetcher = (...args) =&g ...
I am currently working on a range-slider that has two ranges and I need to retrieve the slider value in my javascript code. Here is my approach so far: <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.cs ...
It seems like I must be missing something, even though my code is quite basic and closely follows the example provided on the web. I am currently using server-side paging. The issue I'm facing is that upon initial page load, the data from the server ...
Recently, I set up a node.js server to run a python script using the python-shell . However, after migrating from Windows to Ubuntu, an EACCES error has been persistently popping up. Despite my attempts to adjust permissions and troubleshoot, I haven' ...
Currently, I am in the process of creating a small HTML form that consists of a single textbox input. Once the user enters text into this textbox and clicks on a button located at the end of the page, I would like the textbox to transform into normal plain ...
Although both "yarn serve" and "yarn start" can launch my Vue project, I'm unsure of the differences between them. I've heard that "yarn build" is for packaging, but why don't I use it at work? Usually, I just upload my code to git and let ...
Can SailsJS be used solely as an API? After downloading the Sails project, is it possible to exclude the views and focus only on utilizing Sails as an API? ...
Within a single view, I have multiple react modules making API calls using axios. If the user navigates to another view, all ongoing API calls should be canceled. However, once they return to this view, these calls need to be initiated again (which are tri ...
I am currently working on a wedding RSVP form https://i.stack.imgur.com/Ct8Ux.png My objective is to hide the DONE submit button and only display it when the form is considered valid. <form method="POST" action="http://l.bheng.com:8888/wedding" acce ...
I am working on a React method that is supposed to create an input field with a set maximum length: displayInputField: function(name, placeholder, updateMethod, maxLength) { return ( <div className="form-group form-inline"> ...