how to stop coroutine unity code example

Example 1: stop specific coroutine unity

Coroutine co;  
// start the coroutine the usual way but store the Coroutine object that StartCoroutine returns. 
co = StartCoroutine(MyCoroutine());
// stop the coroutine
StopCoroutine(co);

Example 2: unity stop all coroutines

//Stop all coroutines
StopAllCoroutines();