Return a negative integer, zero, or a positive integer if this object is less than, equal to, or greater than the specified object:
this < that => <0
this == that => 0
this > that => >0
This method may also be accessed via the <
<=
<=>
>=
and >
shortcut operators. If not overridden the default
implementation compares the toStr
representations. Also see docLang.
Examples:
3.compare(8) => -1
8.compare(3) => 1
8.compare(8) => 0
3 <=> 8 => -1 // shortcut for 3.compare(8)
Compare this object to the specified for equality. This
method may be accessed via the == and != shortcut operators.
If not overridden the default implementation compares for
reference equality using the === operator. If this method
is overridden, then hash() must also be overridden such that
any two objects which return true for equals() must return
the same value for hash(). This method must accept null
and
return false.
Scan until we find the given ch
. Return the number of
characters skipped, or -1 if we hit the end of the line.
Consume characters until the given function returns true, or the end-of-line is reached. Return the number of characters skipped, or -1 if we reach the end.
Return a unique hashcode for this object. If a class overrides hash() then it must ensure if equals() returns true for any two objects then they have same hash code.
Are there more characters to consume
Consume characters while the given function returns true
and
return the number of characters consumed.
Consume as many ch
in a row as possible and return the
number consumed.
Advance the scanner to the next character
Check if the specified char is next and advance the position.
ch
: the char to check (including newline chars)
Return true if matched and position was advanced; false otherwise
Check if we have the specified content on the line and advance the position. Note that if you want to match newline characters, use nextCh.
content
: the text content to match on a single line
(excluding newline)
Return true if matched and position was advanced; false otherwise
Peek at the next character without consuming it
Peek at the next code point
Peek at the previous codepoint
Get the current position (current line, index into that line)
For cases where the caller appends the result to a StrBuf, we could offer another method to avoid some unnecessary copying.
Get an immutable representation of this instance or throw NotImmutableErr if this object cannot be represented as an immutable:
Return a string representation of this object.
Trap a dynamic call for handling. Dynamic calls are invoked with the -> shortcut operator:
a->x a.trap("x", null)
a->x() a.trap("x", null)
a->x = b a.trap("x", [b])
a->x(b) a.trap("x", [b])
a->x(b, c) a.trap("x", [b, c])
The default implementation provided by Obj attempts to use reflection. If name maps to a method, it is invoked with the specified arguments. If name maps to a field and args.size is zero, get the field. If name maps to a field and args.size is one, set the field and return args[0]. Otherwise throw UnknownSlotErr.
Consume whitespace and return the number of whitespace characters consumed
Whitespace is defined as space, \t, \n, \u000B, \f, and \r
This method called whenever an it-block is applied to an
object. The default implementation calls the function with this
,
and then returns this
.
Static
echoWrite x.toStr
to standard output followed by newline. If x
is null then print "null". If no argument is provided then
print an empty line.
Optional
x: JsObjStatic
makeOptional
lineIndex: numberOptional
index: numberStatic
makeStatic
make
Scanner is a utility class for parsing lines