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Error if style is null (Bugfix) #4781

Merged
merged 1 commit into from Sep 29, 2017
Merged

Error if style is null (Bugfix) #4781

merged 1 commit into from Sep 29, 2017

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Rydori
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@Rydori Rydori commented Sep 20, 2017

I tested in Chrome and when style(line 50) is null, style.toString is undefined
Reason: typeof null equals "object" (at least in Chrome)

I tested in Chrome and when style(line 50) is null, style.toString is undefined
Reason: typeof null equals "object" (at least in Chrome)
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Rydori commented Sep 21, 2017

should do the same :)

@@ -47,7 +47,7 @@ var exports = module.exports = {
drawPoint: function(ctx, style, radius, x, y) {
var type, edgeLength, xOffset, yOffset, height, size;

if (typeof style === 'object') {
if (style && typeof style === 'object') {
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if (helpers.isObject(style))

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Actually, helpers.isObject doesn't work in this case since it returns true only for plain object.

@simonbrunel simonbrunel added this to the Version 2.7.1 milestone Sep 22, 2017
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Rydori commented Sep 22, 2017

Console (Chrome V8):
var t = document.createElement("div")

undefined
Object.prototype.toString.call(t)
"[object HTMLDivElement]"
typeof t
"object"

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Rydori commented Sep 22, 2017

im so sry, can you revert the second change from this request

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My fault, helpers.isObject doesn't work here, please push a new commit reverting to your initial proposal: if (style && typeof style === 'object')

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Rydori commented Sep 22, 2017

i reverted the change also in my repo

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Thanks!

@etimberg etimberg merged commit b94532c into chartjs:master Sep 29, 2017
yofreke pushed a commit to yofreke/Chart.js that referenced this pull request Dec 30, 2017
I tested in Chrome and when style(line 50) is null, style.toString is undefined
Reason: typeof null equals "object" (at least in Chrome)
exwm pushed a commit to exwm/Chart.js that referenced this pull request Apr 30, 2021
I tested in Chrome and when style(line 50) is null, style.toString is undefined
Reason: typeof null equals "object" (at least in Chrome)
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3 participants