Foreign Exchange Is
Foreign Exchange is a conversion of one country's currency to another country's currency at a certain level known as an exchange rate of foreign exchange. A country's currency is measured according to the law of supply and demand. Therefore, the value of a currency can be a benchmark for another country's currency, for example the US dollar. The value of a country's currency can also be determined by the government of that country.
However, there are many countries that float their currencies freely against other countries' currencies, which makes them continue to fluctuate. FX transactions must have elements of two currencies, namely one currency to be purchased and another currency to be sold. When combined, the two are generally referred to as a currency pair. For example, if an FX player wants to make a USD transaction against IDR, then the currency pair is USD/IDR with USD as the reference currency and IDR as the counter currency.

The definition of the foreign exchange market is
The foreign exchange market is a market where foreign exchange rates, such as the yen, euro or pound, are traded for local currencies, such as the US dollar. This “market” is not centralized, but rather a decentralized network that remains highly integrated through modern information and telecommunications technology. The foreign exchange market (forex, FX, or currency market) is a decentralized or over-the-counter (OTC) global market for trading currencies.
This market determines the exchange rate for each currency. It covers all aspects of buying, selling, and exchanging currencies at current or predetermined prices. In terms of trading volume, it is by far the largest market in the world, followed by the credit market. The main participants in this market are the larger international banks (BIs). Financial centers around the world act as anchors for trading between different types of buyers and sellers around the clock, with weekend exceptions. Because exchange rates are always traded in pairs, the forex market does not determine the absolute value of currencies but rather determines their relative value by determining the market value of one exchange rate when paid for with another exchange rate. Example: 1 USD is worth X CHF, or JYP or CAD, etc.
Functions of the Foreign Exchange Market
The various functions of the Foreign Exchange Market are as follows:- Transfer Function: is the most basic and obvious function of the foreign exchange market, which is to transfer funds or foreign currencies from one country to another to complete their transactions. The market essentially changes one currency to another.
- Credit Function: FOREX provides short-term credit to importers to facilitate the flow of goods and services from various countries. Importers can use their own credit to finance overseas purchases.
- Hedging Function: Another or third function of the foreign exchange market is to protect the value of foreign exchange risk. Parts in foreign exchange are often afraid of fluctuations in exchange rates, which means the price of one currency in relation to another currency. This can lead to losses or profits for the parties involved.
Mainnet is: Explanation, Function and Differences with Testnet