In JavaScript (as i know) there are 2 ways by which you can create dynamic variables: eval Function ; window object; eval: var pageNumber = 1; eval("var text" + pageNumber + "=123;"); alert(text1); window object: var pageNumber = 1; window["text" + pageNumber] = 123; alert(window["text" + pageNumber]);

Feb 25, 2011 · In that scenario, the variables a and b would get stored in the Activation Object from foobar, which we cannot access (of course we could access those directly by calling a and b). Another cool thing is that in this way you can add callback (start/end) for …

Jan 9, 2025 · Using the Map data structure in JavaScript is a safe and efficient way to handle dynamic variable names. Maps allow key-value storage with flexible keys, avoiding global scope pollution and providing clear methods (set, get) for managing dynamic variables effectively.

You can use the setItem function to store values in local storage: localStorage.setItem('movie' + movieID, 'yes'); Then later when you want to check the value, you can use. localStorage.getItem('movie' + movieID);

Sep 2, 2024 · Below are the approaches to create dynamic values and objects in JavaScript: In this approach, we are using object literals with computed property names that allow you to dynamically create or modify object properties based on variables or expressions within square brackets []. [dynamicKey]: dynamicValue,

Mar 17, 2025 · In this post, we will explore how to effectively create variable names dynamically in JavaScript. Using Objects to Store Dynamic Variable Names. One common approach is to use objects as containers for dynamic variable names. For example, if you want to create variables based on user input, you can store the variables as properties within an object.

Variables are Containers for Storing Data. JavaScript Variables can be declared in 4 ways: Automatically; Using var; Using let; Using const

Mar 12, 2024 · The first thing I want is the currently iterated-over item’s data-category value. We can use the getAttribute method to accomplish this and store the returned value into a variable. itemOptions.forEach((item) => { // store the item's category value const category = item.getAttribute("data-category"); }

May 15, 2024 · In JavaScript, variables are dynamically typed, so the same variable can hold any kind of data. Let’s take a look at how to store the most common data types in JavaScript...

Oct 7, 2013 · You could try HTML5 local storage, by use of Modernizr lib. Example: if (Modernizr.localstorage) { localStorage.setItem("bar", "1"); var foo = localStorage.getItem("bar"); } else { // local storage unavailable }