ZenBrowserMirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/zen-browser/pdf.js.git synced 2025-07-08 17:30:09 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

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

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

6
src/display/font_loader.js
View file

@ -121,9 +121,7 @@ class BaseFontLoader {
}
get isFontLoadingAPISupported() {
const supported =
typeof this._document !== "undefined" && !!this._document.fonts;
return shadow(this, "isFontLoadingAPISupported", supported);
return shadow(this, "isFontLoadingAPISupported", !!this._document?.fonts);
}
// eslint-disable-next-line getter-return
@ -173,7 +171,7 @@ if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
const m = /Mozilla\/5.0.*?rv:(\d+).*? Gecko/.exec(
navigator.userAgent
);
if (m && m[1] >= 14) {
if (m?.[1] >= 14) {
supported = true;
}
// TODO - other browsers...