len

Returns the length of a string.

Be aware that the length represents the number of bytes and not the number of characters. see example below.

This function does not generate an event.

str.len()

None

Returns length of the string.

This code uses len() to return the length of a string:

[
    {'Hello'.len();  /* 5 bytes */ },
    {'π'.len();      /* 2 bytes, not 1 */ },
]

Return value in JSON format