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fix: the uncaught typeerror when el is null #1308

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merged 2 commits into from Jul 30, 2020

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sy-records
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@sy-records sy-records commented Jul 26, 2020

Summary

fix: the uncaught typeerror when el is null. close #1154

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@anikethsaha anikethsaha left a comment

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LGTM
[non blocking suggestion]: can we have a test for this?

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@Koooooo-7 Koooooo-7 left a comment

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IMO,Idk why the dark theme buttom changes would break the router changes.
is that issue reproducible ? and can u give more details about the fix change.

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Actually, it's a problem with @jerryc127 code.

document.querySelector("#dark_to_light").innerHTML

use innerHTML can't get the parentNode.

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Koooooo-7 commented Jul 27, 2020

Actually, it's a problem with @jerryc127 code.

document.querySelector("#dark_to_light").innerHTML

use innerHTML can't get the parentNode.

About this kind of fixing, I have reservations.
Although, adding an element undefined/null checking is okay.
we don't need fix issue is not our side.
besides that, sometimes, exception is necessary for troubleshooting.

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Uncaught TypeError: Cannot read property 'tagName' of null
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