One equals sign in ruby means assignment make sure to use when you want to find out if two things are the same.
String equal ruby.
Ruby provides following comparison operators.
Many of ruby s built in classes such as string range and regexp provide their own implementations of the operator also known as case equality triple equals or threequals.
There is a corresponding form of abbreviated assignment operator.
Comparison operators take simple values numbers or strings as arguments and used to check for equality between two values.
True if x is exactly equal to y not equal.
In practice this is almost always what you want.
Ruby size 4 you can also use length instead of size they do the same thing.
A string object in ruby holds and manipulates an arbitrary sequence of one or more bytes typically representing characters that represent human language.
If you don t this right you won t get the expected results.
Notice that we use two equal symbols to mean equality.
Here str and other str are the strings.
The text within the quote marks is the value of the string this is a simple ruby string literal.
Comparison returns 1 0 1 or nil depending on whether string is less than equal to or greater than other string.
B is interpreted as a plus b where the plus.
True or false basis on the equality.
Nil is returned if the two values are incomparable.
For the rare case when you actually need to check if two objects are the same object there s the method equal.
For each operator plus.
But when you want to check for the opposite not true false.
Method in the object referred to by variable a is called with b as its argument.
Is a string class method in ruby which is used to check whether the strings are equal or not if they have the same length and content.
Because it s implemented differently in each class it will behave differently depending on the type of object it was called on.
While evaluating the expression a a ruby will actually create two different string objects which both contain a single character a.
For example a plus.
With an if statement you can check if something is true.
E g a equal a returns false.
If the strings are of different lengths and the strings are equal when compared up to the shortest length then the longer string is considered greater than the shorter one.
We define an empty string as a string of zero length.
Most operators are actually method calls.
Ruby supports a rich set of operators as you d expect from a modern language.
Operator name example result equal.
