# xarray.DataArray.str.startswith

#### DataArray.str.startswith(pat)[[source]](https://github.com/pydata/xarray/blob/main/xarray/core/accessor_str.py#L1168-L1202)

Test if the start of each string in the array matches a pattern.

The pattern pat can either be a `str` or array-like of `str`.
If array-like, it will be broadcast and applied elementwise.

* **Parameters:**
  **pat** ([`str`](https://docs.python.org/3/builtins/stdtypes.html#str)) – Character sequence. Regular expressions are not accepted.
  If array-like, it is broadcast.
* **Returns:**
  **startswith** ([array](https://numpy.org/doc/stable/glossary.html#term-array) of [`bool`](https://docs.python.org/3/builtins/functions.html#bool)) – An array of booleans indicating whether the given pattern matches
  the start of each string element.

### Examples

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```pycon
>>> da = xr.DataArray(["$100", "£23", "100"], dims="x")
>>> da
<xarray.DataArray (x: 3)> Size: 48B
array(['$100', '£23', '100'], dtype='<U4')
Dimensions without coordinates: x
>>> startswith = da.str.startswith("$")
>>> startswith
<xarray.DataArray (x: 3)> Size: 3B
array([ True, False, False])
Dimensions without coordinates: x
```

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