``ts
import { annotate } from 'annotate-code'

const input = 01234
6789 and a 2
line 3
and 4
another 5
error should be here 6
and 7
more 8
lines 9

const message = 'some error message'

let i = 0
const print = (m: string) => {
console.log(++i + ' -------------------------------------')
console.log(m)
}

print(
annotate({
message,
index: 48,
size: 6,
input,
}).message
)

print(
annotate({
message,
index: 0,
input,
}).message
)

print(
annotate({
message,
index: input.length,
input,
}).message
)

print(
annotate({
message,
index: 0,
input,
linesAfter: 5,
}).message
)

print(
annotate({
message,
index: 0,
input,
linesAfter: 100,
}).message
)

print(
annotate({
message,
index: input.length,
linesBefore: 5,
input,
}).message
)

print(
annotate({
message,
index: input.length,
linesBefore: 100,
input,
}).message
)

print(
annotate({
message,
index: 7,
linesAfter: 100,
input,
}).message
)

print(
annotate({
message,
index: 5,
linesBefore: 2,
input,
}).message
)

print(
annotate({
message,
index: 0,
linesAfter: 1,
input,
}).message
)

print(
annotate({
message,
index: 0,
linesAfter: 1,
input: 12345,
}).message
)

print(
annotate({
message,
index: 0,
input: ,
}).message
)

print(
annotate({
message,
index: 1,
input: ,
}).message
)

print(
annotate({
message,
index: -1,
input: abc,
}).message
)
``

{

# index – The index position

src/index.ts#L55

number

# input – The code to annotate

src/index.ts#L54

string

# linesAfter – How many lines after to show

src/index.ts#L57

number

# linesBefore – How many lines before to show

src/index.ts#L56

number

# message – The message to display

src/index.ts#L53

string

# showLineNumbers – Whether to show line numbers

src/index.ts#L59

boolean

# size – The size of the arrows ^^^^

src/index.ts#L58

number

}