Javascript Archives - Page 10 of 13

How to Convert an Array To a String in JavaScript

Last updated on March 15, 2023 by Yogesh Singh

In JavaScript, arrays are an effective data structure that you can use to store and manage collections of values. Nevertheless, there are some circumstances in which you might need to convert an array into a string, such as when you want to display the contents of the array on a web page or send the array as a parameter in a URL.

Mainly it is done by traversing on the Array and concat value to a variable with a separator for string conversion.

Fortunately, there are several built-in methods in JavaScript that can be used to convert an array to a string.

How to Convert an Array To a String in JavaScript

How to copying content to Clipboard with JavaScript

Last updated on June 18, 2023 by Yogesh Singh

Numerous web applications require the ability to copy content easily, for a variety of purposes such as note-taking, code snippet repositories, and social media sharing tools. Copying text or data through a simple click on the clipboard in today’s digital landscape is an essential feature.

In the present-day scenario, most modern browsers offer an effortless way to copy content to the clipboard utilizing JavaScript.

Before proceeding, it is worth noting that due to security protocols, this feature may not be compatible with several browsers. To copy the selected text, kindly instruct the user to press CTRL+C shortcut command.

In this tutorial, I show how you can copy the content to the clipboard with or without plugins.

How to copying content to Clipboard with JavaScript

Restrict keyboard character input with jQuery

Last updated on December 14, 2020 by Yogesh Singh

It is better to restrict the user from entering invalid input and submit the form.

If the inputted data is invalid then the request is not been executed on the server-side script if added validation and the user needs to again fill the details.

If a field does not require a specific type value like – number, character, special character then stop the user from entering.

In this tutorial, I show how you can restrict keyboard character input with jQuery and JavaScript.

Check if value exists in Array – jQuery and JavaScript

Last updated on June 20, 2023 by Yogesh Singh

In this tutorial, I show how you can check whether an Array already contains a specific value or not using Javascript and jQuery.

This requires within the program in some cases like –

Stop new value from insert if it already exists in an Array.
Execute script when the Array contains a particular value.
etc.

If you are familiar with PHP, where you can use the in_array() function to search value in the Array, and it returns the Boolean value ( TRUE or FALSE ).

There are inbuilt methods in jQuery and JavaScript that return the index position of the value which you can use for the search.

Check if value exists in Array – jQuery and JavaScript