34 lines
1.6 KiB
Markdown
34 lines
1.6 KiB
Markdown
## variableFromJSON()
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The `variableFromJSON()` command extracts the value associated with a specific key from a JSON object and stores the result in a target variable. This command is useful for accessing values within a JSON object.
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### Parameters
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* SourceVariable Type: `var` Description: The variable containing the JSON object from which a value is to be extracted. It can be a variable that stores the JSON object or a direct value representing the JSON object.
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* key Type: `value` Description: The key whose value is to be extracted from the JSON object. It must be a value that represents the key within the JSON object.
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* TargetVariable Type: `var` Description: The variable where the extracted value will be stored. It must be a variable that will receive the value associated with the specified key in the JSON object.
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### Command Flow
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### Usage Example
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Suppose the JSON object in `jsonData` is `"name": "Alice", "age": 30` and you want to extract the value associated with the key `"name"` .
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```javascript
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// Variable definitions
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jsonData = {"name": "Alice", "age": 30}
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nameValue = ''
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// Call the command to extract the value associated with the key "name"
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variableFromJSON(jsonData, "name", nameValue)
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// Return the extracted value through addResult
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addResult(nameValue)
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```
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Since the value associated with the key `"name"` in the JSON object `jsonData` is `"Alice"` , the `variableFromJSON()` command will extract `"Alice"` and store it in the variable `nameValue` . The `nameValue` variable will be returned through `addResult(nameValue)` , resulting in the following output:
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```javascript
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"Alice"
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```
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