Lingua-e
← Glossary

What does "weakly typed" mean in programming?

weakly typed is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.

Definition

A language is weakly typed (or loosely typed) when it performs implicit type coercions, silently converting between incompatible types. This can lead to surprising results. JavaScript is the classic example: adding a number to a string produces a string rather than an error.

Example

"JavaScript is weakly typed, so `1 + '2'` gives `'12'` instead of an error — a common source of subtle bugs."

Can you put this sentence in the right order?

Tap the words to place them here

Keep building your technical English

You just looked up what this word means. Lingua-e turns vocabulary like this into full practice: fill-in-the-blanks, listening, and real developer conversations.

Practice this for free

Related terms

Was this page helpful?