blob: 1d18992af6325f4f805ef0ba4e72b0bc5247982e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
function isPropertyAccessSafe(base, property) {
let safe;
try {
safe = !!base[property];
} catch (error) {
safe = false;
}
return safe;
}
function isFunctionCallSafe(base, functionName, ...args) {
let safe = true;
try {
base[functionName](...args);
} catch (error) {
safe = false;
}
return safe;
}
function isLocalStorageAccessSafe() {
let safe;
const TEST_KEY = 'isLocalStorageAccessSafe';
const TEST_VALUE = 'true';
safe = isPropertyAccessSafe(window, 'localStorage');
if (!safe) return safe;
safe = isFunctionCallSafe(window.localStorage, 'setItem', TEST_KEY, TEST_VALUE);
if (safe) window.localStorage.removeItem(TEST_KEY);
return safe;
}
const AccessorUtilities = {
isPropertyAccessSafe,
isFunctionCallSafe,
isLocalStorageAccessSafe,
};
export default AccessorUtilities;
|