How to Allow JavaScript Alerts to Show in Google Chrome

Last Updated: July 9, 2016

Are you having trouble with your Google Chrome alerts not showing up? This article will show you how to enable / disable JavaScript in Google Chrome and then check it’s working by displaying an alert dialogue box using the JavaScript console.

Part 1

Part 1 of 2:

Enabling JavaScript

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It is on by default, but it could have been changed by another user. If you're using your company's PC, it may have certain restrictions regarding the use of JavaScript.
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Click the Customize and Control Google Chrome button in the top right corner of the browser (the icon with the 3 horizontal lines).

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5
Select Content Settings under Privacy.
- A box with a list of settings will appear. Enable or Disable JavaScript is the last option. Select "Enable".
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Part 2

Part 2 of 2:

Checking It With a Console Alert

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Once you have checked that JavaScript is enabled in your browser, open the JavaScript Console, which is part of the Chrome Developer Tools.
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Select More tools --> Developer Tools, and it will open the console in the browser that you are currently using. Make sure the Console tab is selected.
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3
Clear the Console. If there is anything in the Console, type clear() and it will clear the Console. Type alert("Hello World"); and press enter. An alert box should pop up in the browser with the message you typed. You can put any words you want in between the quotes.
- If you want to add an alert to an html file you can add it by using a script tag.
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JavaScript is very sensitive to typos, and is also case sensitive, so if something is not working, check to make sure your syntax is correct and you are not missing anything such as a closing quote or a semicolon.

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How to Allow JavaScript Alerts to Show in Google Chrome

Steps

Enabling JavaScript

Checking It With a Console Alert

Expert Q&A

Tips

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