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Convert files in the src/display/-folder to use optional chaining where possible

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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.
Note that these changes also reduce the size of the *built* `pdf.js` file, when `SKIP_BABEL == true` is set, and for the `MOZCENTRAL` build-target that result in a `0.1%` filesize reduction from a simple and mostly mechanical code change.
This commit is contained in:
Jonas Jenwald 2020-11-06 14:36:16 +01:00
parent e3851a6765
commit 1dad255784
8 changed files with 19 additions and 41 deletions
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3
src/display/svg.js
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@ -1015,8 +1015,7 @@ if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
const current = this.current;
if (
current.textRenderingMode & TextRenderingMode.ADD_TO_PATH_FLAG &&
current.txtElement &&
current.txtElement.hasChildNodes()
current.txtElement?.hasChildNodes()
) {
// If no glyphs are shown (i.e. no child nodes), no clipping occurs.
current.element = current.txtElement;