I am attempting to change the characters with X and make it look something like this XXXXXT123
This is what I have tried:
var sno = 'TEST123';
alert(sno.slice(0,3).replaceWith('X'));
However, I encountered an error in the console
Uncaught TypeError: sno.slice(...).replaceWith is not a function(anonymous function)
Try this technique (originally suggested by @georg):
sno.replace(/.(?=.{4})/g, "X");
This method will accomplish the task:
sno.replace(/^.+(?=....)/, function (str) { return str.replace(/./g, "X"); });
The initial regular expression /^.+(?=....)/ identifies all characters except for the last four.
Those identified characters are then passed into the custom function. The output of that function determines what the recognized characters should be substituted with.
replace(/./g, "X") swaps out every character with an X.
const key = "RANDOM789";
id.slice(3);
id.slice(-2);
alert(Array(chars * 2).join('Y') + test.slice(5));
To achieve the desired outcome, one could utilize the following algorithm:
let identifier = 'EXAMPLE12345';
String.prototype.customReplace = function(startIndex, endIndex, newText) {
return this.substr(0, startIndex) + this.substr(startIndex, endIndex).replace(/./g, 'X') + this.substr(endIndex);
};
identifier = identifier.customReplace(0, identifier.length - 3, "x");
console.log('modified identifier:', identifier);
Here's a different approach with detailed explanations:
let code = 'CODE123';
let characters = 4;
let beginning = Array(code.length - characters + 1).join('Y'); // Forming an array and combining it with Ys, the length is increased by 1 to include all characters
let ending = code.slice(-4); // Selecting only the last 4 characters
alert(beginning + ending);
My website has a sub-menu section with a shopping cart icon. When a user hovers over the icon, it reveals a hidden cart section. The user can then move the mouse into the cart section to remove items. The problem I'm facing is that if a user displays ...
After discovering the non-Node.js version of the EventDrops library for D3 on GitHub, I successfully implemented the example on my own server. You can find more details and the example code in this blog post here. However, I'm currently facing two is ...
Here is a code snippet that can be used to print 'n' number of paragraphs: <% while(rs.next()){ String para=rs.getString("poems"); %> <p> <%=para%> </p> <!-- n number of p tags are printe ...
Recently, I worked on a script (credit to Chyno Deluxe) that generates a list of menu items based on what is written in the input box. However, I now have a new requirement which involves generating a sequence of numbers to be added continuously. Here is ...
Following the recommended practices, I am working on encapsulating my global functions into reusable factory services. In the provided code snippet, my objective is to execute a function that takes the string value of "Qprogress" from my JSON data, perform ...
I need to utilize the Google API time zones, which requires geocoding the address to obtain the latitude and longitude for the time zone. How can I achieve this using a value from a textarea? Here are the 2 steps: Convert the textarea value into a geoc ...
Sorry for the weird title, but that's likely why I can't find the solution on my own. I'm experimenting with CSS animations and I want the form element to decrease in height from 100px -> 0, but I want it to collapse from the top to the ...
I have implemented angularjs ui-grid for sorting 4 columns in my grid. However, I want to hide the sort numbers displayed in the grid. I have searched for a solution or configuration through API but did not find anything helpful. Thank you. https://i.sta ...
In my Vue application, I am trying to implement dynamic filtering for the options in a search box as the user types. Currently, the search box displays the entire list of options without any filtering happening even when the user is typing. <el-form-it ...
Here is an Angular code snippet: <div [style.color]="'#' + prod.id.substring(0,6)"> <small>{{ prod.id }}</small> </div> Now I want to create a similar code using vue.js. ...
I'm currently working on adding a button to my website portfolio that allows users to download my CV when clicked. The functionality works perfectly fine on my localhost, but after deploying it to AWS Amplify, I encountered an error. The error occurs ...
In my scenario, I have controllers A and B located in different states. When I trigger $state.go('state_b');, Angular switches to state state_b and loads controller B. However, what surprises me is that I do not receive $stateChangeSuccess in my ...
My current code has a method that is not very efficient and does not scale well. The object y is an array consisting of key/value pairs, each containing two properties: 1. A unique string property called name. This value is identified by the childre ...
I recently received a task to convert a JavaScript file to a TypeScript file. One issue I am currently facing is whether or not I should define types for the 'id' with this expression, e.g., id={id}. So far, I have tried: Even though I defined ...
Is there a way to determine the width of elements located before an element when it is hovered over? I attempted to achieve this using the following code: $('ul li').hover(function() { $(this).prevAll().each(function() { var margin = $(this ...
Facing an issue with React Router where the main page renders but other pages do not. I am using a library called react-responsive-animate-navbar for the Navigation bar, which works well and changes the URL when clicked. However, the specified component fo ...
Looking for some assistance with the code below. I'm facing an issue where the data is not being submitted along with the form, even though the correct values are displayed in the form. I have included a user query to fetch data from another object an ...
After spending some time experimenting with scrollTop and the Dialog component (a fullscreen fixed modal) from Material-ui, I found that I couldn't quite get scrollTop to function properly. Whenever I clicked the "go down" button, it would either retu ...
My current code for the new component I created is causing this error to be thrown. Error: Failed to compile ./src/components/Hello.tsx (5,1): error TS1128: Declaration or statement expected. I've reviewed other solutions but haven't pinpointed ...
Currently, I am developing a single page application using Angular and TypeScript. I am facing an issue with updating the parameter value (_isShowFirst) of the controller inside a promise function. It seems like nothing is recognized within the promise blo ...