ethers-override/dist/utils.js

> ⚡🚀 SDK for `eth_call` override.

/**
 * Simple object check.
 * @param item
 * @returns {boolean}
 */
export function isObject(item) {
    return (item && typeof item === 'object' && !Array.isArray(item));
}
/**
 * Deep merge two objects.
 * @param target
 * @param ...sources
 */
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 if (Array.isArray(source[key])) {
                if (!target[key])
                    Object.assign(target, { [key]: [] });
                mergeDeep(target[key], source[key]);
            }
            else {
                Object.assign(target, { [key]: source[key] });
            }
        }
    }
    else if (Array.isArray(target) && Array.isArray(source)) {
        source.forEach(s => target.push(s));
    }
    return mergeDeep(target, ...sources);
}