如何在使用 setTimeout function 時停止循環

Question

 const fruits = ['apple', 'mango', 'orange', 'date']; let found = 0; fruits.forEach((value, key) => { if (found == 0) { console.log("value", value) setTimeout(() => { if (value.length > 1) { found = 1; } }, 200) } })

當它被捕獲時停止循環 found=1 但在使用setTimout后它的行為不像這樣如何解決它

Answer 1

這是你想要的：

 const fruits = ['apple', 'mango', 'orange', 'date']; let found = 0; for (var i = 0; i < fruits.length; i++ ) { const value = fruits[i]; if (value.length > 1) { found = 1; console.log("Founded", value) break; } else { console.log("Value", value) } } console.log("Found: ",found)