Frontend

What output will console.log produce in example 48

Junior — Senior

Evapps

What output will console.log produce when declaring a variable with var after its use

Creating a structure from an array of objects by the type field

Junior — Middle+

СБЕР

Update child SubElement only on even counter values

Junior — Senior

IT One

Identification of elements that occur more than once

Определение контекста this в методах объекта

Resetting the counter when switching pages

Implementation of tuple union in TypeScript

Junior — Senior

СБЕР

Getting a sequence without adjacent duplicates

Junior — Senior

СБЕР

Why does an outer try/catch not catch an error thrown inside a Promise

Custom analog of Object.groupBy()

Junior — Middle+

Аэрофлот

DIY mock functionality considering calls and arguments

Junior — Senior

Дом.рф

Transforming a list of strings into an array of objects with name and id fields

Removing elements from the first array that are found in the second, while preserving order

Synchronous updating of input text in different browser tabs

Connecting custom web fonts

Setting a timeout for asynchronous functions

Junior — Senior

Промсвязьбанк

Square of elements of the sorted array

Function for counting character frequency in a string

Junior — Senior

МТС

React application: current date, responsive window width, and simple counter

Junior — Senior

2gis