# numpy.trim_zeros() in Python

numpy.trim_zeros function is used to trim the leading and/or trailing zeros from a 1-D array or sequence.

Syntax: numpy.trim_zeros(arr, trim)

Parameters:
arr : 1-D array or sequence
trim : trim is an optional parameter with default value to be ‘fb'(front and back) we can either select ‘f'(front) and ‘b’ for back.

Returns: trimmed : 1-D array or sequence (without leading and/or trailing zeros as per user’s choice)

Code 1:

 `import` `numpy as geek  ` ` `  `gfg ``=` `geek.array((``0``, ``0``, ``0``, ``0``, ``1``, ``5``, ``7``, ``0``, ``6``, ``2``, ``9``, ``0``, ``10``, ``0``, ``0``)) ` ` `  `# without trim parameter ` `# returns an array without leading and trailing zeros  ` ` `  `res ``=` `geek.trim_zeros(gfg) ` `print``(res) `

```Output :array([1, 5, 7, 0, 6, 2, 9, 0, 10])
```

Code 2:

 `import` `numpy as geek  ` `gfg ``=` `geek.array((``0``, ``0``, ``0``, ``0``, ``1``, ``5``, ``7``, ``0``, ``6``, ``2``, ``9``, ``0``, ``10``, ``0``, ``0``)) ` ` `  `# without trim parameter ` `# returns an array without any leading  zeros  ` ` `  `res ``=` `geek.trim_zeros(gfg, ``'f'``) ` `print``(res) `

```Output :array([1, 5, 7, 0, 6, 2, 9, 0, 10, 0, 0])
```

Code 3:

 `import` `numpy as geek  ` `gfg ``=` `geek.array((``0``, ``0``, ``0``, ``0``, ``1``, ``5``, ``7``, ``0``, ``6``, ``2``, ``9``, ``0``, ``10``, ``0``, ``0``)) ` ` `  `# without trim parameter ` `# returns an array without any trailing  zeros  ` ` `  `res ``=` `geek.trim_zeros(gfg, ``'b'``) ` `print``(res) `

```Output :array([0, 0, 0, 0, 1, 5, 7, 0, 6, 2, 9, 0, 10])
```

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