by Sai gowtham

How to get first character of a string in Golang

In this tutorial, we will learn how to get the first character of a given string in Golang.

In Golang, strings are the character sequence of bytes.

Getting the first character

To access the string’s first character, we can use the slice expression [] in Go.

Here is an example, that gets the first character L from the following string:

country := "London"
firstCharacter:= country[0:1]

fmt.Println(firstCharacter)

Output:

L

In the example above, we have passed [0:1] to the slice expression. so it starts the extraction at position 0 and ends at position 1 (which is excluded).

Note: The above syntax works on ASCII Characters.

For unicode characters, we can access the first character like this:

str := "😀😁😁"
result := []rune(str) // convert string to runes
firstCharacter := string(result[0:1]) // convert runes back to string

fmt.Println(firstCharacter)

Output:

😀

Css Tutorials & Demos

How rotate an image continuously in CSS

In this demo, we are going to learn about how to rotate an image continuously using the css animations.

How to create a Instagram login Page

In this demo, i will show you how to create a instagram login page using html and css.

How to create a pulse animation in CSS

In this demo, i will show you how to create a pulse animation using css.

Creating a snowfall animation using css and JavaScript

In this demo, i will show you how to create a snow fall animation using css and JavaScript.

Top Udemy Courses

JavaScript - The Complete Guide 2021 (Beginner + Advanced)
JavaScript - The Complete Guide 2021 (Beginner + Advanced)
64,026 students enrolled
52 hours of video content
View Course
React - The Complete Guide (incl Hooks, React Router, Redux)
React - The Complete Guide (incl Hooks, React Router, Redux)
284,472 students enrolled
40 hours of video content
View Course
Vue - The Complete Guide (w/ Router, Vuex, Composition API)
Vue - The Complete Guide (w/ Router, Vuex, Composition API)
152,857 students enrolled
48.5 hours of video content
View Course