What is the process of bringing in this JavaScript library?

After using npm, I successfully downloaded easystar.js.

The code within this file is structured as follows:

export const TOP: 'TOP'
export const TOP_RIGHT: 'TOP_RIGHT'
export const RIGHT: 'RIGHT'
export const BOTTOM_RIGHT: 'BOTTOM_RIGHT'
export const BOTTOM: 'BOTTOM'
export const BOTTOM_LEFT: 'BOTTOM_LEFT'
export const LEFT: 'LEFT'
export const TOP_LEFT: 'TOP_LEFT'

type Direction = 'TOP' | 'TOP_RIGHT' | 'RIGHT' | 'BOTTOM_RIGHT' | 'BOTTOM' | 'BOTTOM_LEFT' | 'LEFT' | 'TOP_LEFT'

export class js {

  /**
   * Description of the method and its functionality.
   *
   * @param {Array|Number} tiles An array of numbers indicating walkable tiles on the grid.
   */
  setAcceptableTiles(tiles: number[] | number): void

.
.
.
  removeAllDirectionalConditions(): void
}

I have attempted to import it in various ways:

import * as easystar from 'easystarjs';
import 'easystarjs';
import {js} from 'easystarjs';

However, upon inspection with a breakpoint, no reference to easystar or js can be found within my window object. What could be the issue here?

Answer №1

Here's a helpful method for importing it into your JavaScript.

For those utilizing node js :

var easystarjs = require('easystarjs');
var easystar = new easystarjs.js();

Answer №2

When you include

"type": "module"
in your Node.js code, the following statement will work:

import easystarjs from 'easystarjs'

Answer №3

It's highly likely that the code provided is written in TypeScript, not JavaScript. TypeScript code needs to be compiled into pure JavaScript before it can run in a browser. When inspecting with Dev Tools, you may encounter some SyntaxErrors.

Additionally, there seems to be ambiguity regarding the library and file names mentioned. The names easystar, easystar.js, and easystarjs could potentially refer to three separate libraries that are unrelated to each other.

Lastly, even after resolving the previous issues, remember that importing an entity does not automatically add it to the window object. You still need to explicitly assign it like

window.<i>something</i> = <i>something</i>
.

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