Question

148

Adding window.event handler to typescript

rated 0 times [ 151] [ 3] / answers: 1 / hits: 38544 / 8 Years ago, fri, july 29, 2016, 12:00:00

Normally when I wanted to catch an event on a page in js:

window.onkeydown = function (event) {

    //Do something here

}

I cannot seem to figure out (or Google) how to do this in typescript. For the setup I am working in, there is a ts file for the page, and a ts file for the class that it is loading.

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

payne

Add To Favorites

Follow

Total Points: 527

Total Questions: 108

Total Answers: 88

Location: Tajikistan

Member since Thu, Apr 14, 2022

2 Years ago

answered 8 Years ago ryanulyssesb · Accepted Answer

This

window.addEventListener('keydown', keyDownListener, false)

window is defined will all events in lib.d.ts and this particular listener as

 addEventListener(type: keydown, listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;

or this, if you want to keep your original style,

window.onkeydown = (ev: KeyboardEvent): any => {

     //do something

}