[英]error TS2339: Property 'imageID' does not exist on type 'HTMLElement'
[英]Angular 6: error TS2339: Property 'value' does not exist on type 'HTMLElement'
我有允許用戶提交評論的textarea,我想按時抓取評論提交的日期,並與添加的評論一起保存到json中:
在json文件中提交評論后,我想要這樣的東西:
"comment": [
{
"id": 1,
"username": "Michael Ross",
"city": "New York USA",
"date": "2018-01-01T00:00:00",
"task_id": 1,
"description": "Lorem ipsum dolor sit amet enim. Etiam ullamcorper. Suspendisse a pellentesque dui, non felis. Maecenas malesuada elit lectus felis, malesuada ultricies. Curabitur et lig"
}
]
問題:現在提交評論時,我有以下內容:沒有顯示日期:
"comment": [
{
"id": 1,
"username": "Michael Ross",
"city": "New York USA",
"task_id": 1,
"description": "Lorem ipsum dolor sit amet enim. Etiam ullamcorper. Suspendisse a pellentesque dui, non felis. Maecenas malesuada elit lectus felis, malesuada ultricies. Curabitur et lig"
}
]
到目前為止,這是我嘗試從輸入的評論中獲取日期的方法。
HTML:
<form class="add-comments" [formGroup]="addForm" (keyup.enter)="addComments()">
<input type="hidden" id="localTime" name="localTime">
<div class="form-group">
<textarea class="form-control" rows="1" placeholder="Add comments" formControlName="description" id="description"></textarea>
</div>
</form>
這是有關組件ts的方法。
addComments(task_id) {
const formData = this.addForm.value;
formData.task_id = task_id;
this.userService.addComments(formData)
.subscribe(data => {
this.comments.push(this.addForm.value);
});
const date = new Date();
const d = date.getUTCDate();
const day = (d < 10) ? '0' + d : d;
const m = date.getUTCMonth() + 1;
const month = (m < 10) ? '0' + m : m;
const year = date.getUTCFullYear();
const h = date.getUTCHours();
const hour = (h < 10) ? '0' + h : h;
const mi = date.getUTCMinutes();
const minute = (mi < 10) ? '0' + mi : mi;
const sc = date.getUTCSeconds();
const second = (sc < 10) ? '0' + sc : sc;
const loctime = month + day + hour + minute + year + '.' + second;
document.getElementById('localTime').value = loctime;
}
不幸的是,當我提交評論時,出現以下錯誤
ERROR in src/app/user-profile/user-profile.component.ts(75,21): error TS2365: Operator '+' cannot be applied to types 'string | number' and 'string | number'.
src/app/user-profile/user-profile.component.ts(77,42): error TS2339: Property 'value' does not exist on type 'HTMLElement'.
我需要更改以獲得我想要的東西嗎?
您可以嘗試此代碼
const loctime = `${year}-${month}-${day}T${hour}:${minute}:${second}`;
// output "2018-10-27T10:26:32"
代替使用Javascript方式,嘗試使用Angular方式
<input type="hidden" id="localTime" name="localTime" formControlName="localTime">
this. addForm.get('localTime').setValue(loctime);
注意:我們需要使用反勾號(``)而不是單引號('')。
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