blaze-2d
Version:
A fast and simple WebGL 2 2D game engine written in TypeScript
34 lines • 1.01 kB
JavaScript
/**
* Simple object check.
*
* @param item
* @returns Wether or not the `item` is an object
*/
export function isObject(item) {
return item && typeof item === "object" && !Array.isArray(item);
}
/**
* Deep merge two objects. Circular reference will cause infinite recursion.
*
* @param target The object to merge `...sources` into
* @param ...sources The sources to merge into `target`
*/
export function mergeDeep(target, ...sources) {
if (!sources.length)
return target;
const source = sources.shift();
if (isObject(target) && isObject(source)) {
for (const key in source) {
if (isObject(source[key])) {
if (!target[key])
Object.assign(target, { [key]: {} });
mergeDeep(target[key], source[key]);
}
else {
Object.assign(target, { [key]: source[key] });
}
}
}
return mergeDeep(target, ...sources);
}
//# sourceMappingURL=objects.js.map