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23 lines
684 B
23 lines
684 B
4 weeks ago
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import 'package:mustache_template/mustache.dart';
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void main() {
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final template = Template('''
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{{#value}}Value exists: {{value}},{{/value}}
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others...
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''');
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print(template.renderString({'value': '有内容'}));
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// ✅ 正确做法1：key 完全不存在
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print(template.renderString({'value': ''}));
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// 输出: "No value provided"
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// ✅ 正确做法2：显式设置为 null（需确保非空安全环境）
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print(template.renderString({'value': null}));
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// 输出: "No value provided"
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// ❌ 以下会报错：
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// print(template.renderString({'value': ''})); // 空字符串
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// print(template.renderString({'value': 'Hello'})); // 非空字符串
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}
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