Quick tip: How to loop objects in JavaScript |

Опубликовано: 02 Апрель 2023
на канале: Code Pro

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how to loop over objects using for...in and for...of loops in JavaScript:

for...in loop: Used to loop over the properties of an object. The loop iterates over the property names (keys) and allows you to access the values of those properties. The syntax is for (variable in object) {...} where variable represents the property name, and object represents the object being iterated over.

for...of loop: Used to loop over iterable objects such as arrays, strings, and values of an object's properties. The loop iterates over the values of the iterable object, and the syntax is for (variable of iterable) {...} where variable represents the value and iterable represents the object being iterated over.

Both loops can be used to loop over objects, but for...in is specifically designed for objects, while for...of is more commonly used for arrays and strings. It's important to note that the order in which for...in iterates over an object's properties is not guaranteed, and it's generally considered a bad practice to rely on the order of properties in an object.

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