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34 lines
570 B
Markdown
34 lines
570 B
Markdown
# `let mut` is deprecated
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## Example
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This error occurs when a variable declaration is marked with `mut`.
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Erroneous code example:
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```js
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function main() {
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let mut x = 0;
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}
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```
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The compiler will reject this code with, for example...:
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```js
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Error [EPAR0370015]: let mut = ... is deprecated. `let` keyword implies mutabality by default.
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--> test.leo:2:5
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2 | let mut x = 0;
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| ^^^^^^^
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```
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## Solution
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As the `mut` modifier is implicitly assumed, the solution is to remove the `mut` modifier:
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```js
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function main() {
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let x = 0;
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}
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```
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