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| 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 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | 180x 180x 3x 180x 1080x 217x 632x 632x 1x 631x 631x 126x 126x 126x 33x 93x 76x 126x 505x 504x 180x | import { isArray, isFunction, isPlainObject, isNull } from 'core/utils/types';
import { each } from 'core/utils/arrays';
// https://github.com/jquery/jquery/blob/master/src/core.js#L116
export function extend<T, U>(target: T, object1: U): T & U;
export function extend<T, U, V>(target: T, object1: U, object2: V): T & U & V;
export function extend<T, U, V, W>(target: T, object1: U, object2: V, object3: W): T & U & V & W;
export function extend<T, U, V, W, X>(target: T, object1: U, object2: V, object3: W, object4: X): T & U & V & W & X;
export function extend<T, U, V, W, X, Y>(target: T, object1: U, object2: V, object3: W, object4: X, object5: Y): T & U & V & W & X & Y;
export function extend<T, U, V, W, X, Y, Z>(
target: T,
object1?: U,
object2?: V,
object3?: W,
object4?: X,
object5?: Y,
object6?: Z,
): T & U & V & W & X & Y & Z {
/* eslint-disable no-restricted-syntax, guard-for-in */
const sources: Array<any> = [object1, object2, object3, object4, object5, object6];
// Handle case when target is a string or something (possible in deep copy)
if ((typeof target !== 'object' || isNull(target)) && !isFunction(target)) {
target = {} as T;
}
each(sources, (source) => {
// Only deal with non-null/undefined values
if (source != null) {
// Extend the base object
for (const name in source) {
const copy: any = source[name];
// Prevent Object.prototype pollution
// Prevent never-ending loop
if (name === '__proto__' || target === copy) {
continue;
}
const copyIsArray = isArray(copy);
// Recurse if we're merging plain objects or arrays
if (copy && (isPlainObject(copy) || copyIsArray)) {
const src = target[name];
let clone: any = src;
// Ensure proper type for the source value
if (copyIsArray && !isArray(src)) {
clone = [];
} else if (!copyIsArray && !isPlainObject(src)) {
clone = {};
}
// Never move original objects, clone them
target[name] = extend(clone, copy) as any;
// Don't bring in undefined values
} else if (copy !== undefined) {
target[name] = copy;
}
}
}
});
// Return the modified object
return target as any;
/* eslint-enable */
}
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