How to convert a string into a sequence of characters in Nim?

This tutorial explains how to convert a String into a Sequence of characters in the Nim Programming language

The string is a type that contains a collection of characters, enclosed in double quotes.

The sequence is a collection of elements with dynamic in size.

Both are different data types and automatic conversion is not required.

Convert String into a sequence of characters in Nim with an example

Multiple ways we can convert a String into a sequence

The sequtils module contains the toSeq procedure to convert the iterated types into a sequence.

First, convert String into iterate using items Here is an examples

import sequtils
var str="example"

var sequence=toSeq(str.items)
echo sequence
echo typeof(sequence)

Output:

@['e', 'x', 'a', 'm', 'p', 'l', 'e']
seq[char]

map is a procedure that is used with a lambda expression to iterate the elements and returns the sequence of elements.

Example:

import sequtils,sugar
var str="example"
var sequence1 = str.map(c => c)
echo sequence1
echo typeof(sequence1)

Output:

@['e', 'x', 'a', 'm', 'p', 'l', 'e']
seq[char]

use sequtils map procedure @ operator converts a string to the sequence. You can also use an array to sequence with this.

Here is an example

import sequtils,sugar
var str="example"

var sequence1 = @str

echo sequence1
echo typeof(sequence1)

cast allows you to convert one type to another type

cast[targettype](data)

It converts given variable data to target data type, in this case seq[char].

Here is an example

import sequtils
var str="example"
var sequence=cast[seq[char]](str)
echo sequence
echo typeof(sequence)