When webpack and typescript collide: d3.tip goes missing

I am currently working with d3 in combination with Typescript and webpack.

Within package.json:

"dependencies": {
    "@types/d3": "^3.5.38",
    "@types/d3-tip": "^3.5.5",
    "d3": "^3.5.17",
    "d3-tip": "^0.7.1",
    ...
  },

While my d3 code functions properly, I seem to be encountering issues with d3.tip(). The compilation proceeds without any errors, but when the code is executed in the browser, the following error is displayed:

Uncaught TypeError: d3.tip is not a function

Upon evaluating d3.tip in the console, it returns undefined. Additionally, attempts such as:

import * as d3 from "d3"
import * as d3Tip from "d3-tip";

d3.tip = d3Tip;

Result in the message:

Cannot assign to 'tip' because it is a constant or a read-only property.

What could be causing this issue? How can I correctly utilize d3.tip?

typescriptd3.js

Answer №1

Here's how I resolved the issue:

import * as d3 from "d3"
import * as d3Tip from "d3-tip"
(d3 as any).tip = d3Tip

By using (d3 as any), I was able to override the compiler's complaint about d3.tip being a readonly property.

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