gf/util/gutil/gutil_slice.go at v1.14.4 · luyinhua/gf

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// This Source Code Form is subject to the terms of the MIT License.

// If a copy of the MIT was not distributed with this file,

// You can obtain one at https://github.com/gogf/gf.

package gutil

// SliceCopy does a shallow copy of slice <data> for most commonly used slice type

// []interface{}.

func SliceCopy(data []interface{}) []interface{} {

newData := make([]interface{}, len(data))

copy(newData, data)

return newData

}

// SliceDelete deletes an element at <index> and returns the new slice.

// It does nothing if the given <index> is invalid.

func SliceDelete(data []interface{}, index int) (newSlice []interface{}) {

if index < 0 || index >= len(data) {

return data

}

// Determine array boundaries when deleting to improve deletion efficiency.

if index == 0 {

return data[1:]

} else if index == len(data)-1 {

return data[:index]

}

// If it is a non-boundary delete,

// it will involve the creation of an array,

// then the deletion is less efficient.

return append(data[:index], data[index+1:]...)

}