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LibJS: Add JSON.parse

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This commit is contained in:
Matthew Olsson 2020-06-10 23:30:36 -07:00 • committed by Andreas Kling
parent e8e728454c
commit b155e64b67
6 changed files with 218 additions and 5 deletions
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37
Libraries/LibJS/Tests/test-common.js
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@ -92,3 +92,40 @@ const assertVisitsAll = (testFunction, expectedOutput) => {
function isClose(a, b) {
return Math.abs(a - b) < 0.000001;
}
/**
* Quick and dirty deep equals method.
* @param {*} a First value
* @param {*} b Second value
*/
function assertDeepEquals(a, b) {
assert(deepEquals(a, b));
}
function deepEquals(a, b) {
if (Array.isArray(a))
return Array.isArray(b) && deepArrayEquals(a, b);
if (typeof a === "object")
return typeof b === "object" && deepObjectEquals(a, b);
return a === b;
}
function deepArrayEquals(a, b) {
if (a.length !== b.length)
return false;
for (let i = 0; i < a.length; ++i) {
if (!deepEquals(a[i], b[i]))
return false;
}
return true;
}
function deepObjectEquals(a, b) {
if (a === null)
return b === null;
for (let key of Reflect.ownKeys(a)) {
if (!deepEquals(a[key], b[key]))
return false;
}
return true;
}