Iterables are iterable objects (like Arrays). Iterables can be accessed with simple and efficient code. Iterables can be iterated over with for..of loops The For Of Loop The JavaScript for..of statement loops through the elements of an iterable object.
The break statement “jumps out” of a loop. The continue statement “jumps over” one iteration in the loop. The Break Statement You have already seen the break statement used in an earlier chapter of this tutorial. It was used to…
Loops can execute a block of code as long as a specified condition is true. The While Loop The while loop loops through a block of code as long as a specified condition is true. Syntax while (condition) { …
The For Of Loop The JavaScript for of statement loops through the values of an iterable object. It lets you loop over iterable data structures such as Arrays, Strings, Maps, NodeLists, and more: Syntax for (variable of iterable) { …
The For In Loop The JavaScript for in statement loops through the properties of an Object: Syntax for (key in object) { // code block to be executed } Example const person = {fname:”John”, lname:”Doe”, age:25}; let text =…
Loops can execute a block of code a number of times. JavaScript Loops Loops are handy, if you want to run the same code over and over again, each time with a different value.
The switch statement is used to perform different actions based on different conditions. The JavaScript Switch Statement Use the switch statement to select one of many code blocks to be executed. Syntax switch(expression) { case x: // code block…
Conditional statements are used to perform different actions based on different conditions. Conditional Statements Very often when you write code, you want to perform different actions for different decisions. You can use conditional statements in your code to do this.…
A JavaScript Boolean represents one of two values: true or false. Boolean Values Very often, in programming, you will need a data type that can only have one of two values, like YES / NO ON / OFF TRUE /…
