I have recently started diving into TypeScript with React and encountered a new concept called a .d.ts file. I am wondering if there is an established best practice for writing this file or if it's more of a developer preference. Can someone verify if my approach to writing the .d.ts file is correct? My goal is to utilize the enquireScreen function in TypeScript. Thank you! 😊
Below is the JSX code snippet:
let enquireJs;
if (typeof window !== 'undefined') {
const matchMediaPolyfill = mediaQuery => {
return {
media: mediaQuery,
matches: false,
addListener() {
},
removeListener() {
},
};
};
window.matchMedia = window.matchMedia || matchMediaPolyfill;
enquireJs = require('enquire.js');
}
const mobileQuery = 'only screen and (max-width: 767.99px)';
export function enquireScreen(cb, query = mobileQuery) {
if (!enquireJs) {
return;
}
const handler = {
match: () => {
cb && cb(true);
},
unmatch: () => {
cb && cb();
},
};
enquireJs.register(query, handler);
return handler;
}
This is how I structured my own .d.ts file:
import enquireJS = require('enquire.js');
export const mobileQuery = 'only screen and (max-width: 767.99px)';
export function enquireScreen(cb: any, query = mobileQuery);