Require in Typescript

Question

Can someone explain how this looks in TypeScript. Can this be done through imports?

JS:

var casper = require('casper').create({})

CoffeeScript:

 casper = require("casper").create()

Visual Studio Error : Error 1 The name "casper" does not exist in the current scope

+4

user1647411 Nov 14 '12 at 19:05

6 answers

 import something = module('something'); var somevar = something.create({});

It should be noted here that TS does not allow truncating a module (“something”) today, so you need to split your statement into two.

+7

Brian terlson Nov 14 '12 at 19:27

If you use the module flag when compiling TypeScript:

 --module commonjs

or

 --module amd

It converts the import into the appropriate module load statement:

 import something = module('something'); var somevar = something.create();

+1

Fenton Nov 14 '12 at 19:28

If this thing is written for some reason in JavaScript, you also need to declare a module for it (otherwise it will not compile).

By convention, you place such an ad in a separate file called casper.d.ts:

 declare module casper { export class SomeClassInCasper { } export function someFunctionInCasper(); }

And you should include a link to this casper.d.ts at the top of your import / module:

 /// <reference path="casper.d.js" /> import casper = import("casper");

0

Oleg Mihailik Nov 16 '12 at 11:39

casper is installed through npm in the global area.

A short case with typescript as you can see here:

0

G. Avraham Jun 19 '16 at 13:27

I wrote a fairly detailed post about using Require in TypeScript. My approach does NOT require you to use ugly

 require(['dependency'], function() { }

syntax. Instead, in TypeScript, you can use the convenient syntax import x = module("x") .

-1

brettjonesdev Jan 16 '13 at 16:58

blorkfish · Accepted Answer · 2012-11-15T01:05:27+0000

 require["casper", (casper) => { var item = casper.create(); };