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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops What are Loops?

Posted by mujuhm
mujuhm
8,537 Points

re ESLint error document.write(randNum + ' ');

The script in the lesson worked when I duplicated it on the Brackets editor on my os, However, why do I get an error in Brackets from JSLint that 'document' is not defined. [ document.write(randNum + ' '); ]

There are also 2 other warnings: -missing 'use strict' statement [ return Math.floor(Math.random()*upper)+1 ] -document.write can be a from of eval. [ document.write(randNum+''); ]

2 Answers

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

The error is because you're using a host-based JavaScript engine, and the "document" object is something provided only in a browser.

The warnings are typical "best practice" reminders. While optional, "use strict" enforces good code practices. And both "document.write" and "eval" can pose security concerns when used carelessly, but this is not something you need be concerned with during the early stages of learning.

mujuhm
mujuhm
8,537 Points
mujuhm
mujuhm
8,537 Points

Thanks for taking the time to explain that.