Plus operator
The plus operator is a language-defined operation, commonly performing numeric addition, string concatenation, or collection combination according to operand types.
Learn AI-Assisted Python Programming, Second Edition
- How it is used
- Uses + to put two strings together while reading and testing Python code.
- How deep it goes
- Demonstrates string concatenation and contrasts repetition without developing numeric behavior or implementation internals.
- Examples
- Uses sentence fragments and '-=' repeated five times as interactive Python examples.
- What you can do after
- Apply it in Python to join strings and test operator behavior at the Python prompt.
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The Well-Grounded Rubyist, Fourth Edition
The Array#+ method is a Ruby method that returns a new array containing the elements of its operand arrays without mutating the receiver.
- How it is used
- Combines two arrays into a new array without changing the receiver.
- How deep it goes
- Demonstrates Array#+ with an irb example and contrasts its behavior with concat.
- Examples
- Combines [1, 2, 3] and [4, 5, 6], then checks that the original array is unchanged.
- What you can do after
- Apply Array#+ to combine arrays while keeping the receiver unchanged.
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Related concepts
- bit shiftingcontrasts with · Bit shifting is a bitwise operation that moves the positions of an integer’s binary digits left or right by a specified count.
- concatenationused by · Concatenation is the operation of joining ordered sequences end to end to form a single sequence.
- stringused by · A string is a programming-language value representing an ordered sequence of characters or character units as text.
- pure functionkind of · A pure function is a function whose output is determined solely by its explicit inputs and whose evaluation has no externally observable side effects.
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