@weintek/libc/string

The @weintek/libc/string module can be used to convert a given error code to a textual description.

Note:

  • The modules under @weintek/libc (e.g., errno, stdio, string, unistd) are heavily influenced by the design of C standard library.
  • The module is availabe when JS object/action is run on Local HMI)

Methods

(static) strerror(errnum) → {String}

Since:
  • EasyBuilder Pro V6.09.01
See:

This method returns a textual description of the error code errnum.

Example

Get the error code and convert it to a human-readable message

const cerrno = await import('@weintek/libc/errno');
const cstring = await import('@weintek/libc/string');
const errCode = cerrno.getErrno();
const errMessage = cstring.strerror(errCode);
console.log(`Error: ${errMessage}`);
Parameters:
Name Type Description
errnum Number

An error code retrieved by getErrno() of @weintek/libc/error module
Returns:

Returns a descriptive string corresponding to the error code errnum.

Type
String