Looking for assistance to replace keywords in a string with pre-defined variables. Currently, the code only displays variable names instead of their content. Can anyone provide help?
Desired Output:
1111Test1
2222Test2
3333Test3
Current Output:
1111aa
2222bb
3333cc
Code snippet:
var aa = "Test1";
var bb = "Test2";
var cc = "Test3";
var str_before = "1111{t:aa}\n2222{t:bb}\n3333{t:cc}";
var str_after = str_before.replace(/\{t:\s*(\w+)\}/g, "$1");
alert(str_before+"\n\n"+str_after);
You can't directly reference a variable in a regular expression constant (i.e. /.../ syntax).
One workaround is to utilize the callback parameter of the .replace function:
var map = {
aa: 'Test1',
bb: 'Test2',
cc: 'Test3'
};
var str_before = "1111{t:aa}\n2222{t:bb}\n3333{t:cc}";
var str_after = str_before.replace(/{t:(\w+)}/g, function(match, p1) {
return map.hasOwnProperty(p1) ? map[p1] : '';
});
This approach also allows for easy configuration of your mapping from name to value, eliminating the need for separate variable declarations.
If you're in need of a solution for replacing variables within a string, look no further than this handy NPM package. Simply provide the string and an array of variables to replace them with. Check out a basic example and access to the package via the links below:
Example:
var str = "This is a {0} string for {1}"
var newStr = stringInject(str, ["test", "stringInject"]);
// This is a test string for stringInject
NPM / GitHub links:
First question here... I have been given the task of improving an Angular application, even though I am starting with zero experience in Angular. While I do have some background in JavaScript, I mostly work with Java (JSP's and yes, JavaScript). Despi ...
When a form is submitted, one of the fields being sent is an ID number instead of the name for easier processing by the server. For example: HTML dropdown select <select ng-model="myColor" class="form-control" ng-options = "color.ID as color.color ...
Below is the JS function implemented: function addMemberToLessonDirect(id) { $.ajaxSetup({ headers: { 'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content') } ...
Looking to implement the PrimeNG Table. https://i.stack.imgur.com/bQycr.png Check out the live demo on StackBlitz. The table has three editable columns. The "Property Name" column always displays a text box in edit mode, while the "Property Value Type" ...
Looking to create a web application using Angular2 with TypeScript. After researching authentication in Angular2, it seems I need to include the following components: index component (public) login component (public) my private component (private) Thes ...
Is there a way to use POST with jQuery/Javascript to send data to another page and then redirect to that page? Instead of using GET... Using Javascript window.location = 'receivepage.php?variable='+testVariable; Once it's received by PHP ...
I'm having trouble preventing double submissions on my form when I rapidly press the button that triggers a click event. I attempted to disable the button after a successful submission, but it still submits twice. Here is my code: <script> $(do ...
Attempted this solution, but unfortunately it did not work Currently using the latest version of Material-UI Error: Module not found: Can't resolve '@emotion/react' Let's try installing it then.. npm i @emotion/react @emotion/style ...
Currently, I am immersed in a React Js project that involves various tabs, each containing a unique data grid table with rows featuring checkboxes. Issue: Whenever I select a row from Table 1 and navigate to Tab 2 before returning to Tab 1, the checkboxes ...
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 ...
Apologies if the question seems a bit convoluted, but let me explain the scenario. Here is an example of an Ajax function I am working with: $.ajax({ url:"../controllers/xx_register.php", type:"POST", data:send, success: function(resp ...
When uploading a large number of files, the process can take several minutes. I am currently using a multi-part form to post the files and then waiting for a response from the POST request. However, I am facing issues with timeouts and re-posting of files ...
I'm currently updating a website and unfortunately, I do not have access to the original code. All I am able to do is append new code at the end of it. The existing code consists of a highstock chart with specific data attributes. Here is the snippet ...
Although it may seem like simple logic, I am currently unable to log in. Imagine I have a function called mytimer() stored in a common file that is linked to every HTML page. mytimer(){...........................}; Now, at some point on another page, whe ...
I have a JSON array containing objects stored on the server. How can I access the first object to print its contents? The data is in the following format: [ { "eventId": "8577", "datasetId": "34", "nodeId": "8076", "typeId": "4", "type": ...
I recently attempted to create a function using either JavaScript or Python with Selenium to measure the page load time of a website. While document.ready() gives me the DOM load time, it may not capture AJAX calls that occur afterwards. I noticed there i ...
After configuring Tailwind CSS with Next.js, I made changes to the tailwind.config.js file. However, after making these changes, the compilation process failed and resulted in the following error: Error - ./src/assets/styles/global.css:3:1 Syntax error: Un ...
My webpage has an animation that runs smoothly on desktop, but stops as soon as I interact with the page on a touch device. I have tested this issue on Chrome and Safari on iPad. I'm curious if this behavior is intentional on the part of browser vend ...
I have a form with multiple select options that I want to save in a cookie for user convenience. The goal is to make the serialization of the cookie easily readable in both JavaScript and PHP, allowing me to set the form onLoad and filter search results ba ...
How can I prevent users from entering the # character into an HTML input field? I attempted to use the pattern attribute, but it does not seem to be effective. I included this pattern in my input element: pattern="[^-#]+" I expected that this would disa ...