how to use the issymbol function from the underscore library in javascript

To use the issymbol function from the underscore library in JavaScript, you first need to include the underscore.js library in your project. You can do this by either downloading the library and including it in your project's source code, or by using a content delivery network (CDN).

Once you have included the underscore library, you can use the issymbol function in your JavaScript code to check if a given value is a symbol or not. The issymbol function takes one argument, which is the value you want to check.

Here is an example usage of the issymbol function:

index.tsx
// include the underscore library in your project
const _ = require('underscore');

// define some symbols
const symbol1 = Symbol('symbol1');
const symbol2 = Symbol('symbol2');

// define some non-symbol values
const stringVal = 'this is a string';
const numberVal = 123;

// check if the values are symbols using the issymbol function
console.log(_.isSymbol(symbol1)); // true
console.log(_.isSymbol(symbol2)); // true
console.log(_.isSymbol(stringVal)); // false
console.log(_.isSymbol(numberVal)); // false
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In this example, we first include the underscore library using the require function. We then define some symbols (symbol1 and symbol2) and some non-symbol values (stringVal and numberVal). We use the issymbol function to check if each value is a symbol or not, and log the result to the console.