String manipulation and query functions.
s1+s2+...
, but this method makes sure that
values are converted to strings, with the blank value invisible.
s1==s2
,
which can (for technical reasons) return false even if the
strings are the same.
The result is an array of strings, and if you want to use the
individual elements you need to use square-bracket indexing,
with [0]
representing the first object
The result is an array of strings, and if you want to use the
individual elements you need to use square-bracket indexing,
with [0]
representing the first object
startIndex
and continues to the character at index endIndex-1
Thus the length of the substring is endIndex-startIndex
.