---
source: crates/biome_formatter_test/src/snapshot_builder.rs
info: js/babel-plugins/function-bind.js
---

# Input

```js
// https://babeljs.io/docs/en/babel-plugin-proposal-function-bind

obj::func
// is equivalent to:
func.bind(obj)

::obj.func
// is equivalent to:
obj.func.bind(obj)

obj::func(val)
// is equivalent to:
func.call(obj, val)

::obj.func(val)
// is equivalent to:
obj.func.call(obj, val)

```


# Prettier differences

```diff
--- Prettier
+++ Biome
@@ -1,16 +1,18 @@
 // https://babeljs.io/docs/en/babel-plugin-proposal-function-bind
 
-obj::func;
+obj:
+:func
 // is equivalent to:
-func.bind(obj)::obj.func;
+func.bind(obj)
+
+::obj.func
 // is equivalent to:
-obj.func.bind(obj);
+obj.func.bind(obj)
 
-obj::func(val);
+obj::func(val)
 // is equivalent to:
-func
-  .call(obj, val)
+func.call(obj, val)
 
-  ::obj.func(val);
+::obj.func(val)
 // is equivalent to:
-obj.func.call(obj, val);
+obj.func.call(obj, val)
```

# Output

```js
// https://babeljs.io/docs/en/babel-plugin-proposal-function-bind

obj:
:func
// is equivalent to:
func.bind(obj)

::obj.func
// is equivalent to:
obj.func.bind(obj)

obj::func(val)
// is equivalent to:
func.call(obj, val)

::obj.func(val)
// is equivalent to:
obj.func.call(obj, val)
```

# Errors
```
function-bind.js:3:5 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Expected a statement but instead found ':'.
  
    1 │ // https://babeljs.io/docs/en/babel-plugin-proposal-function-bind
    2 │ 
  > 3 │ obj::func
      │     ^
    4 │ // is equivalent to:
    5 │ func.bind(obj)
  
  i Expected a statement here.
  
    1 │ // https://babeljs.io/docs/en/babel-plugin-proposal-function-bind
    2 │ 
  > 3 │ obj::func
      │     ^
    4 │ // is equivalent to:
    5 │ func.bind(obj)
  

```