Within a function, I have the following statement:
Math.random() > 0.5 ? 'spikes' : 'slime'
I am interested in adding one more variable, let's call it 'stone', and having the program randomly choose between those three options. How can I modify the statement to achieve this without utilizing arrays? Any guidance on this matter would be greatly appreciated as I am a novice and finding difficulty comprehending this open source code.
Using an array is definitely the optimal choice:
var result = ['spikes', 'slime', 'stone'][Math.floor(Math.random() * 3)];
console.log(result);While switch/case can work, it requires more code compared to using an array:
function getRandom() {
var num = Math.floor(Math.random() * 3);
switch (num) {
case 0:
return 'spikes';
case 1:
return 'slime';
default:
return 'stone';
}
}
console.log(getRandom());Using arrays is an efficient method. All you need to do is create an array with the options you want and then randomly select one.
Array.prototype.selectRandom = function() {
return this[Math.floor(Math.random() * this.length)];
}
// example without modifying Array.prototype
function chooseRandom(arr) {
return arr[Math.floor(Math.random() * arr.length)];
}
var items = ['apple', 'banana', 'cherry', 'date', 'orange', 'pear', 'strawberry'];
document.write([items.selectRandom(), chooseRandom(items)].join('<br />'));Just performed an ajax request with a query and noticed that my response is already in the form of a JavaScript object. When I try to parse the JSON using: var obj = jQuery.parseJSON(response); 'obj' turns out to be null, yet I can directly ac ...
Can Vue be used to create components that can be instantiated onto custom tags rendered by a PHP application, similar to "custom elements light"? While mounting the Vue instance onto the page root element seems to work, it appears that Vue uses the entire ...
const { GraphQLServer } = require('graphql-yoga'); const mongoose = require('mongoose'); mongoose.connect("mongodb://localhost/test1"); const Todo = mongoose.model('Todo',{ text: String, complete: Boolean }); const ...
I've been experimenting with creating a grid layout where the bottom image will move up until it is 10px away from the image directly above it. However, no matter what I attempt, the spacing seems to be based on the tallest image rather than the one a ...
I am working on a script that dynamically adds text boxes based on a specific time interval. <script type="text/javascript> $(document).ready(function() { var data = $('#data').val(); var counter = 1; var d = new Date(); va ...
I need help updating nested array elements in JavaScript. I want to convert dates into a different format. How can I update the nested elements? array1 = [ { "week": [ "2019-05-06T16:00:00.000Z", "2019-05-07T16:00:00.000Z", "2019-05-08T16:00:00.000Z", "20 ...
Is there a way to adjust the setTimeout delay time while it is already running? I tried using debounceTime() as an alternative, but I would like to modify the existing delay time instead of creating a new one. In the code snippet provided, the delay is se ...
I am facing an issue with my ajax code where it is being called multiple times. Below is my php code: (While loop extracts results from a database. For brevity, I have included just the modal and dropdown menu sections.) $rezPet = mysqli_query($kon, "SEL ...
I am currently using webdriverjs to run automated tests on a Windows 8 system. The tests run successfully when the browser is set to Chrome, but encounter issues when I switch to PhantomJS. Interestingly, the same tests run smoothly on OS X Mavericks. Ins ...
I am looking to have the div appear on a mouse over effect in the following code. Is there a way for me to input a url based on the data that is passed to it? Anchorage: ["Anchorage", "(555)555-5555"], (This represents the data being posted) AtlanticCit ...
I developed a wrapper for the SSR function GetServerSideProps to minimize redundancy. However, I am facing challenges in correctly typing it with TypeScript. Here is the wrapper: type WithSessionType = <T extends {}>( callback: GetServerSideProps&l ...
I'm having an issue with my code that submits a form when an option in a select box is clicked. The problem arises when I try to put it inside a loop, as it stops working. Can anyone assist me with this? Below is the code snippet causing trouble: &l ...
I'm facing an issue with calling a PHP function from JavaScript. I have written a code snippet where the PHP function should print the arguments it receives, but for some reason, I am not getting any output when running this code on Google Chrome. Can ...
Seeking advice on how to update the color of a Three.js Object3D. Initially created using MeshStandardMaterial, this object is later retrieved from the scene by its ID. Is it possible to change the color of the Mesh at this stage? If needing to replace th ...
I'm running into an issue with the fetch function and node.js. When a button is clicked on my frontend, I want to send a post request to receive an array from my backend as a response. My backend is built using node.js with express, and I'm using ...
I am searching for a solution in TypeScript that adds an element to the beginning of an array and returns the updated array. I am working with Angular and Redux, trying to write a reducer function that requires this specific functionality. Using unshift ...
I am having trouble increasing the width of the scrollbar when hovering over it. However, I keep receiving an error in the console stating that 'scrollbar.addEventListener' is not a function. JAVASCRIPT setTimeout(function() { const scrollbar ...
Is there a way to pass an array of custom button objects to a specific element? Here's an example: <my-component header="My Title" buttons.bind="[{icon: 'fa-plus', display: 'New', action: onNew}]"> </my-component> ...
Hey everyone, I've been working on automating a Google form and I'm facing an issue with a dropdown menu. I'm struggling to select the desired value from the dropdown list. When I use Puppeteer to type in "United space Kingdom," it autocomp ...
I need a single command that will remove an error label from my HTML when the field content is changed. It currently works on input and select elements, but not within an input-group. I am looking for a solution that will work universally across all instan ...