CODEWITHSUNDEEP
javascripttypescripteval
Foobar
Foobar

Reputation: 8477

TypeScript doesn't have window.eval()

In JavaScript I can do:

window.eval(userInput)

in a client-side .js file without any issue.

But in TypeScript, window.eval() does not exist. I get the error:

property eval does not exist on type window

How can I get around this issue?

The reason I want to use eval() is to execute some user created code. The eval call must be done on a global scope because the user code relies on some other code that I have already previously loaded with <script> tags.

Upvotes: 5

Views: 2400

Answers (1)

youngwerth
youngwerth

Reputation: 612

There are a couple of ways to do this.

Use type assertion (Type unsafe, but quick and easy):

(window as any).eval("1 + 1");

Or you can modify the window declaration as described in this issue (Type safe)

Upvotes: 5

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