required仅当在输入中设置时我才想添加到输入。
<input-block
name="formName"
label="my label"
placeholder="test"
required
></input-block>
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成分:
@Component({
selector: 'input-block',
inputs: ['name', 'label', 'placeholder', 'required'],
template: `
<label class="input-block">
<span class="name">{{label}}</span>
<input type="text"
name="{{name}}"
placeholder="{{placeholder}}"
<!-- no idea: {{required ? 'required : ''}} -->
>
</label>
`
})
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