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JavaScript JavaScript Basics (Retired) Making Decisions with Conditional Statements Build a Random Number Guessing Game

guram dgebuadze
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guram dgebuadze
Front End Web Development Techdegree Student 4,122 Points
Posted by guram dgebuadze
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guram dgebuadze
Front End Web Development Techdegree Student 4,122 Points

Concatenation (string and number)

In javascript If we are concatenating string and number, does this mean that variable used for number is becoming string? (if yes why and how?)

2 Answers

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

When you combine things of different types, the system converts one to the other's type if possible. This is called "type coercion".

If the conversion isn't possible (or the system doesn't know how) you would get an error instead.

Lawrence Wachira
Lawrence Wachira
593 Points

Thanks. Pretty clear explanation.