How Can I Dynamically Set JavaScript Variable Values Using Strings?

Dynamically Accessing Variables by Converting Strings to Variable Names

Problem:

In JavaScript, you need to dynamically set the value of a variable inside a function based on a string passed as input. However, it's not immediately apparent how to achieve this.

Dynamic Variable Access:

To dynamically access variables using a string, you can utilize the global window object. The window object is the root of the JavaScript environment and contains all global variables.

To set the value of a variable whose name is stored in a string, you can use the following syntax:

window[variableName] = value;

Example:

Using your variable onlyVideo as an example, you can set its value inside a function as follows:

const setVariable = (variableName, value) => {
  window[variableName] = value;
};

setVariable("onlyVideo", true);

After calling the setVariable function, the onlyVideo variable will have its value set to true.

Note:

This method only works for global variables. If the variable you want to access is not a global variable, you may need to consider using a different approach, such as using an object property.

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