breakBreaks out of a loop continueSkips a value in a loop whileLoops a code block while a condition is true do...whileLoops a code block once, and then while a condition is true forLoops a code block while a condition is true
JavaScript while and do...while Loop JavaScript for...of Loop JavaScript for...in Loop JavaScript break Statement JavaScript continue StatementBefore we wrap up, let’s put your knowledge of JavaScript for loop to the test! Can you solve the following challenge? Challenge: Write a function...
In awhileloop, the condition is tested, and if it is true, the loop is executed again In afor loop, the increment expression (e.g. i++) is first evaluated, and then the condition is tested to find out if another iteration should be done ...
key6: 'value6'};function iterateObject(obj) {for (let key in obj) {if (typeof obj[key] === 'object') {// 递归调用,处理嵌套对象iterateObject(obj[key]);} else {console.log(key + ': ' + obj[key]);}}}iterateObject(nestedObject);...
System.out.print(age); break; } } } } age = 64 power = 5 while True: response = input("Are you {0} years old? Answer with 'Yes', 'Older' or 'Younger'. Nothing else.".format(age)) if response == "Yes": print("Nice! You are {0} years old!".format(age)) ...
函数是 JavaScript 中的基本组件之一。JavaScript 中的函数类似于过程——一组执行任务或计算值的语句。但要成为函数,这个过程应该接受输入并返回与输入存在某些明显关系的输出。要使用一个函数,你必须将其定义在你希望调用它的作用域内。
setTimeout(() => console.log('d'), 0); var r = new Promise(function(resolve, reject) { resolve(); }); r.then(() => { var begin = Date.now(); while (Date.now() - begin < 1000); console.log('c1'); new Promise(function(resolve, reject) { ...
async continue extends if of this while await debugger false import return throw with break default finally in set true yield case delete for instanceof static try catch do from let super typeof class else function new switch var JavaScript 还保留或限制了某些关键字的使用,这些关键字目前尚未被语言...
这个例子说明了如何使用break语句同while循环。请注意循环打破了初期由x到5，document.write(..) 语句的正下方，以右大括号：var x = 1;document.write("Entering the loop ");while (x < 20){ if (x == 5){ break; // breaks out of loop completely } x = x + 1; document....
static void uv__udp_io(uv_loop_t* loop, uv__io_t* w, unsigned int revents) { uv_udp_t* handle; handle = container_of(w, uv_udp_t, io_watcher); // 可读事件触发 if (revents & POLLIN) uv__udp_recvmsg(handle); // 可写事件触发 if (revents & POLLOUT) { uv__udp_sendmsg(...