Strconv.atoi: parsing “”: invalid syntax error typically occurs in Go when the “strconv.Atoi() function is called with an empty string as an argument.”
Reproduce the error
package main
import (
"fmt"
"strconv"
)
func main() {
_, err := strconv.Atoi("")
if err != nil {
fmt.Println("Error:", err)
}
}
Output
Error: strconv.Atoi: parsing "": invalid syntax
How to fix the error
To fix this error, you can “add a check before calling strconv.Atoi() to ensure that the string is not empty and possibly contains a valid integer representation.”
package main
import (
"fmt"
"strconv"
)
func main() {
s := ""
if s != "" {
n, err := strconv.Atoi(s)
if err != nil {
fmt.Println("Error:", err)
} else {
fmt.Println("Converted value:", n)
}
} else {
fmt.Println("String is empty, cannot convert.")
}
}
Output
String is empty, cannot convert.
This way, you can handle the empty string case separately and avoid triggering the error from strconv.Atoi().
That’s it!

Krunal Lathiya is a seasoned Computer Science expert with over eight years in the tech industry. He boasts deep knowledge in Data Science and Machine Learning. Versed in Python, JavaScript, PHP, R, and Golang. Skilled in frameworks like Angular and React and platforms such as Node.js. His expertise spans both front-end and back-end development. His proficiency in the Python language stands as a testament to his versatility and commitment to the craft.