@absmartly/javascript-sdk
Version:
A/B Smartly Javascript SDK
196 lines (195 loc) • 6.56 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.chooseVariant = exports.hashUnit = exports.base64UrlNoPadding = exports.stringToUint8Array = exports.arrayEqualsShallow = exports.isEqualsDeep = exports.isPromise = exports.isObject = exports.isNumeric = exports.isWorker = exports.isLongLivedApp = exports.getApplicationVersion = exports.getApplicationName = void 0;
const md5_1 = require("./md5");
const getApplicationName = app => typeof app !== "string" ? app.name : app;
exports.getApplicationName = getApplicationName;
const getApplicationVersion = app => typeof app !== "string" ? app.version : 0;
exports.getApplicationVersion = getApplicationVersion;
function isBrowser() {
return typeof window !== "undefined" && typeof window.document !== "undefined";
}
function isReactNative() {
return typeof navigator !== "undefined" && navigator.product === "ReactNative";
}
function isLongLivedApp() {
return isBrowser() || isReactNative();
}
exports.isLongLivedApp = isLongLivedApp;
function isWorker() {
return typeof self === "object" && self.constructor && self.constructor.name === "DedicatedWorkerGlobalScope";
}
exports.isWorker = isWorker;
function isNumeric(value) {
return typeof value === "number";
}
exports.isNumeric = isNumeric;
function isObject(value) {
if (!(value instanceof Object)) {
return false;
}
const proto = Object.getPrototypeOf(value);
return proto == null || proto === Object.prototype;
}
exports.isObject = isObject;
function isPromise(value) {
return value !== null && typeof value === "object" && typeof value.then === "function";
}
exports.isPromise = isPromise;
function arrayEqualsDeep(a, b, astack = [], bstack = []) {
var _a;
let len = (_a = astack === null || astack === void 0 ? void 0 : astack.length) !== null && _a !== void 0 ? _a : 0;
while (len--) {
if (astack[len] === a) return bstack[len] === b;
}
astack = astack !== null && astack !== void 0 ? astack : [];
bstack = bstack !== null && bstack !== void 0 ? bstack : [];
astack.push(a);
bstack.push(b);
len = a.length;
while (len--) {
if (!isEqualsDeep(a[len], b[len], astack, bstack)) return false;
}
bstack.pop();
astack.pop();
return true;
}
function objectEqualsDeep(a, b, keys, astack, bstack) {
var _a;
let len = (_a = astack === null || astack === void 0 ? void 0 : astack.length) !== null && _a !== void 0 ? _a : 0;
while (len--) {
if (astack && astack[len] === a) return bstack && bstack[len] === b;
}
astack = astack !== null && astack !== void 0 ? astack : [];
bstack = bstack !== null && bstack !== void 0 ? bstack : [];
astack.push(a);
bstack.push(b);
len = keys.length;
while (len--) {
const key = keys[len];
if (!Object.prototype.hasOwnProperty.call(b, key)) return false;
if (!isEqualsDeep(a[key], b[key], astack, bstack)) return false;
}
bstack.pop();
astack.pop();
return true;
}
function isEqualsDeep(a, b, astack, bstack) {
if (a === b) return true;
if (typeof a !== typeof b) return false;
switch (typeof a) {
case "boolean":
return a === b;
case "number":
if (Number.isNaN(a)) return Number.isNaN(b);
return a === b;
case "string":
return a === b;
case "object":
{
const arrays = Array.isArray(a);
if (arrays && !Array.isArray(b)) return false;
const objects = isObject(a);
if (objects && !isObject(b)) return false;
if (!arrays && !objects) return false;
if (arrays && Array.isArray(b)) {
if (a.length === b.length) {
return arrayEqualsDeep(a, b, astack, bstack);
}
} else {
if (a && b) {
const keys = Object.keys(a);
if (keys.length === Object.keys(b).length) {
return objectEqualsDeep(a, b, keys, astack, bstack);
}
}
}
break;
}
default:
break;
}
return false;
}
exports.isEqualsDeep = isEqualsDeep;
function arrayEqualsShallow(a, b) {
return a === b || (a === null || a === void 0 ? void 0 : a.length) === (b === null || b === void 0 ? void 0 : b.length) && !(a === null || a === void 0 ? void 0 : a.some((va, vi) => b && va !== b[vi]));
}
exports.arrayEqualsShallow = arrayEqualsShallow;
function stringToUint8Array(value) {
const n = value.length;
const array = new Array(value.length);
let k = 0;
for (let i = 0; i < n; ++i) {
const c = value.charCodeAt(i);
if (c < 0x80) {
array[k++] = c;
} else if (c < 0x800) {
array[k++] = c >> 6 | 192;
array[k++] = c & 63 | 128;
} else {
array[k++] = c >> 12 | 224;
array[k++] = c >> 6 & 63 | 128;
array[k++] = c & 63 | 128;
}
}
return Uint8Array.from(array);
}
exports.stringToUint8Array = stringToUint8Array;
const Base64URLNoPaddingChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
function base64UrlNoPadding(value) {
const chars = Base64URLNoPaddingChars;
const remaining = value.byteLength % 3;
const encodeLen = (value.byteLength / 3 | 0) * 4 + (remaining === 0 ? 0 : remaining === 1 ? 2 : 3);
const result = new Array(encodeLen);
let i;
let out = 0;
const len = value.byteLength - remaining;
for (i = 0; i < len; i += 3) {
const bytes = value[i] << 16 | value[i + 1] << 8 | value[i + 2];
result[out] = chars[bytes >> 18 & 63];
result[out + 1] = chars[bytes >> 12 & 63];
result[out + 2] = chars[bytes >> 6 & 63];
result[out + 3] = chars[bytes & 63];
out += 4;
}
switch (remaining) {
case 2:
{
const bytes = value[i] << 16 | value[i + 1] << 8;
result[out] = chars[bytes >> 18 & 63];
result[out + 1] = chars[bytes >> 12 & 63];
result[out + 2] = chars[bytes >> 6 & 63];
}
break;
case 1:
{
const bytes = value[i] << 16;
result[out] = chars[bytes >> 18 & 63];
result[out + 1] = chars[bytes >> 12 & 63];
}
break;
default:
break;
}
return result.join("");
}
exports.base64UrlNoPadding = base64UrlNoPadding;
function hashUnit(value) {
const unit = typeof value === "string" ? value : value.toFixed(0);
return base64UrlNoPadding((0, md5_1.md5)(stringToUint8Array(unit).buffer));
}
exports.hashUnit = hashUnit;
function chooseVariant(split, prob) {
let cumSum = 0.0;
for (let i = 0; i < split.length; ++i) {
cumSum += split[i];
if (prob < cumSum) {
return i;
}
}
return split.length - 1;
}
exports.chooseVariant = chooseVariant;