ZenBrowserMirrors/pdf.js
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Use optional chaining, where possible, in the web/-folder

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By using optional chaining, see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining, it's possible to reduce unnecessary code-repetition in many cases.
This commit is contained in:
Jonas Jenwald 2021-02-05 17:36:28 +01:00
parent dc19965d78
commit 063a072742
11 changed files with 27 additions and 32 deletions
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2
web/pdf_layer_viewer.js
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@ -122,7 +122,7 @@ class PDFLayerViewer extends BaseTreeViewer {
this._optionalContentConfig = optionalContentConfig || null;
this._pdfDocument = pdfDocument || null;
const groups = optionalContentConfig && optionalContentConfig.getOrder();
const groups = optionalContentConfig?.getOrder();
if (!groups) {
this._dispatchEvent(/* layersCount = */ 0);
return;