英文:
Example of merge operation in helm
问题
在官方文档中，描述非常简略：
> 将两个或多个字典合并成一个，以目标字典为优先：
>
> $newdict := merge $dest $source1 $source2 这是深度合并操作，而不是深度复制操作。被合并的嵌套对象在两个字典中是同一实例。如果您需要深度复制以及合并，请使用deepCopy函数与合并...
您是否需要示例输入和输出数值？
英文:
In offcial documentaion the description is very poor:
> Merge two or more dictionaries into one, giving precedence to the dest
> dictionary:
>
> $newdict := merge $dest $source1 $source2 This is a deep merge
> operation but not a deep copy operation. Nested objects that are
> merged are the same instance on both dicts. If you want a deep copy
> along with the merge, then use the deepCopy function along with
> merging...
Could you please provide example with input and output values ?
答案1
得分: 3
以下是您要翻译的内容：
合并
在合并字典时，具有不同值的键将被保留，对于相同键的情况，dst 字典具有优先权。例如，merge $dst $src1 $src2 的结果将是：
或者在helm语法中：
{{ $mergedDict := merge $dst $src1 $src2 }}
将会是：
mergedDict: map[default:default key:true name:value1 overwrite:me]
mergeOverwrite
在mergeOverwrite中，优先顺序是从右到左。所以我们有：
{{ $mergedDict := mergeOverwrite $dst $src1 $src2}}
将会是：
mergedDict: map[default:default key:false name:value2 overwrite:overwritten]
或
{"default": "default","key": "false","name": "value2","overwrite": "overwritten"}
英文:
Consider we have 3 maps (or Dict) as follows:
dst = {"default": "default","overwrite": "me","key": "true"}src1 = {"overwrite": "overwritten","key": "false","name": "value1"}src2 = {"key": "false","name": "value2"}
You can represent it in helm with:
{{ $dst := dict "default" "default" "overwrite" "me" "key" "true"}}{{ $src1 := dict "overwrite" "overwritten" "key" "false" "name" "value1"}}{{ $src2 := dict "key" "false" "name" "value2"}}
Merge
In merging dicts, keys with different values will be kept, and in the same keys cases, dst dict takes precedence.
For example, result of merge $dst $src1 $src2 would be:
mergedDict = {"default": "default","key": "true","name": "value1","overwrite": "me"}
or in helm syntacs:
{{ $mergedDict := merge $dst $src1 $src2 }}
would be:
mergedDict: map[default:default key:true name:value1 overwrite:me]
mergeOverwrite
In mergeOverwrite, precedence would be from right to left. So we have:
{{ $mergedDict := mergeOverwrite $dst $src1 $src2}}
would be:
mergedDict: map[default:default key:false name:value2 overwrite:overwritten]
or
{"default": "default","key": "false","name": "value2","overwrite": "overwritten"}
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论