Ruby supports a rich set of operators as you d expect from a modern language.
Ruby string comparison equal.
Notice that we use two equal symbols to mean equality.
In order to compare things ruby has a bunch of comparison operators.
Equality is performed either using the or eql.
For example a plus.
Object new object new false string new string.
It is not uncommon to need to compare two strings either to assess equality or to find out if one string is higher or lower than the other alphabetically speaking.
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.
If you don t this right you won t get the expected results.
Ruby string1 abc if abc string1 puts they are equal end but objects are frequently compared and tested for equality lsquo behind.
Comparison returns 1 0 1 or nil depending on whether string is less than equal to or greater than other string.
With an if statement you can check if something is true.
For example 1 1 1 will return true because the numbers on both sides represent the same value.
Because it s implemented differently in each class it will behave differently depending on the type of object it was called on.
John fred false john eql.
But when you want to check for the opposite not true false.
The operator returns true if both objects can be considered the same.
This works because the string class implements a two equal signs method that knows how to compare strings.
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.
One equals sign in ruby means assignment make sure to use when you want to find out if two things are the same.
Object comparison is extremely important not only do we tend to often explicitly compare objects to each other e g.
The expression a a also returns true because both strings have the same value.
Method in the object referred to by variable a is called with b as its argument.
Most operators are actually method calls.
But what if string didn t implement.
Comparison operators take simple values numbers or strings as arguments and used to check for equality between two values.
Just like other object oriented languages ruby gives an object ways to find out if it is equal to greater or less than another object.
For each operator plus.
