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Introduce some optional chaining in the src/shared/ folder

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This commit is contained in:
Jonas Jenwald 2021-09-17 13:46:47 +02:00
parent 94c2d08975
commit f9c2a8d437
3 changed files with 18 additions and 36 deletions
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15
src/shared/util.js
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@ -393,10 +393,7 @@ function assert(cond, msg) {
// Checks if URLs use one of the allowed protocols, e.g. to avoid XSS.
function _isValidProtocol(url) {
if (!url) {
return false;
}
switch (url.protocol) {
switch (url?.protocol) {
case "http:":
case "https:":
case "ftp:":
@ -427,7 +424,7 @@ function createValidAbsoluteUrl(url, baseUrl = null, options = null) {
const dots = url.match(/\./g);
// Avoid accidentally matching a *relative* URL pointing to a file named
// e.g. "www.pdf" or similar.
if (dots && dots.length >= 2) {
if (dots?.length >= 2) {
url = `http://${url}`;
}
}
@ -537,11 +534,7 @@ class AbortException extends BaseException {
}
function bytesToString(bytes) {
if (
typeof bytes !== "object" ||
bytes === null ||
bytes.length === undefined
) {
if (typeof bytes !== "object" || bytes?.length === undefined) {
unreachable("Invalid argument for bytesToString");
}
const length = bytes.length;
@ -954,7 +947,7 @@ function utf8StringToString(str) {
}
function isArrayBuffer(v) {
return typeof v === "object" && v !== null && v.byteLength !== undefined;
return typeof v === "object" && v?.byteLength !== undefined;
}
function isArrayEqual(arr1, arr2) {