Question

当我输入文字并按回车键时，我希望文本框消失。但由于某些原因，当我输入';'时它才会消失。任何其他角色似乎都不起作用。

@Injectable()
export class AuthGuard implements CanActivate {
    constructor(private loginService:LoginService, private router:Router) { }

    canActivate(next:ActivatedRouteSnapshot, state:RouterStateSnapshot) {
        return this.loginService.isLoggedIn().map(e => {
            if (e) {
                return true;
            }
        }).catch(() => {
            this.router.navigate(['/login']);
            return Observable.of(false);
        });
    }   
}

Answer 1

只需删除不必要的eval功能。

function enterPressed(e, field) {
    if (e.keyCode == 13) {
        var tb = document.getElementById("searchbox");
		if (field.value.length > 0) {
	document.getElementById('searchdisappear').style.display='none';
		}
	}
}

<!DOCTYPE html>

<html lang = "en">

	<head>
		<link rel="stylesheet" type="text/css" href="./css/main.css">
		<script src ="./js/search.js"></script>
	</head>
	
	<body>

<!-- SEARCH BAR AND BUTTON -->
	<div id="searchdisappear" style="display:block;">
		<input id="searchbox" class="search" maxlength="200" type="text" onkeypress="enterPressed(event, searchbox)" placeholder="Search.."/>
		<p class="searchtext" onclick="buttonClicked(searchbox)"

	</div>
</html>

仅当文本字段包含';'时，JavaScript按键才起作用

1 个答案: