I have used for... of loop on string it works But when I applied it on window object it console an error that window object is not iterable. How both the objects are different ?? As we know string is also an object in js.
In this tutorial, we are going to learn about maps and for…of loops in JavaScript with Examples.
for/of - 循环遍历 iterable 对象的值 while - 当指定条件为 true 时循环一段代码块 do/while - 当指定条件为 true 时循环一段代码块For 循环for 循环是在您希望创建循环时经常使用的工具。for 循环的语法如下:for (statement 1; statement 2; statement 3) { // 要执行的代码块 }语句1 在循环(代码块...
JavaScript now supports five different types of loops:while— loops through a block of code as long as the condition specified evaluates to true. do…while— loops through a block of code once; then the condition is evaluated. If the condition is true, the statement is repeated as long as...
JavaScript supports different kinds of loops:for - loops through a block of code a number of times for/in - loops through the properties of an object while - loops through a block of code while a specified condition is true do/while - also loops through a block of code while a ...
Loopsare used in programming to automate repetitive tasks. The most basic types of loops used in JavaScript are thewhileanddo...whilestatements, which you can review in “How To Construct While and Do…While Loops in JavaScript.” Becausewhileanddo...whilestatements areconditionally based, they...
Different Kinds of LoopsJavaScript supports different kinds of loops:for - loops through a block of code a number of times for/in - loops through the properties of an object for/of - loops through the values of an iterable object while - loops through a block of code while a specified ...
JS Loops/Conditionals break continue do-while loop for loop for-in loop if-else switch while loop JS String Methods JS Number Methods JS Math Functions JS Array Methods JavaScript: For LoopThis JavaScript tutorial explains how to use the for loop with syntax and examples.Description In Ja...
You can use break also to break out of a for..of loop:const list = ['a', 'b', 'c'] for (const value of list) { console.log(value) if (value === 'b') { break } }Note: there is no way to break out of a forEach loop, so (if you need to) use either for or for...
for-in循环(for-in Loops) for-in循环应该用在非数组对象的遍历上,使用for-in进行循环也被称为“枚举”。 从技术上将,你可以使用for-in循环数组(因为JavaScript中数组也是对象),但这是不推荐的。因为如果数组对象已被自定义的功能增强,就可能发生逻辑错误。另外,在for-in中,属性列表的顺序(序列)是不能保证的。