我试图用以下代码创建一个字典或哈希表,其中键是字符串,值是整数:
slackEvents.on('im_open', (event: any, body: any, headers: any) => {
console.log('Test'); // Doesn't work
});
slackEvents.on('message', (event: any, body: any, headers: any) => {
console.log('Test2'); // Works fine
});
但是,它给出以下错误:
<select>
<option value>Some nill value label</option>
<option value="1">Option one</option>
<optgroup label="Option Group 1" class="css-class-for-option-group-1">
<option value="1:1">Option one in group 1</option>
<option value="1:2">Option two in group 1</option>
</optgroup>
<optgroup label="Option Group 2" class="css-class-for-option-group-2">
<option value="2:1">Option one in group 2</option>
<option value="2:2">Option two in group 2</option>
</optgroup>
</select>
问题出在哪里,如何解决?
答案 0 :(得分:1)
问题在于文字#()
是一个空向量。
要创建可变的哈希表,请使用(make-hash)
。
(define dict (make-hash))