格式化 Phone 输入的数字 Angular
Formatting Phone Number Input In Angular
我在 Angularjs 中看到了很多格式化 phone 数字输入字段的解决方案,但我在 Angular 上找不到任何东西 7. 我本质上想要的是用户在文本字段中键入以下内容:
123456789
并将文本字段的输入格式设置为:
(123) 456-789
我该怎么做呢?我找到了以下正则表达式来验证它:
^(\([0-9]{3}\) |[0-9]{3}-)[0-9]{3}-[0-9]{4}$
您可以使用 Phone 掩码指令处理此问题,如下所示,
export class PhoneMaskDirective {
constructor(public ngControl: NgControl) { }
@HostListener('ngModelChange', ['$event'])
onModelChange(event) {
this.onInputChange(event, false);
}
@HostListener('keydown.backspace', ['$event'])
keydownBackspace(event) {
this.onInputChange(event.target.value, true);
}
onInputChange(event, backspace) {
let newVal = event.replace(/\D/g, '');
if (backspace && newVal.length <= 6) {
newVal = newVal.substring(0, newVal.length - 1);
}
if (newVal.length === 0) {
newVal = '';
} else if (newVal.length <= 3) {
newVal = newVal.replace(/^(\d{0,3})/, '()');
} else if (newVal.length <= 6) {
newVal = newVal.replace(/^(\d{0,3})(\d{0,3})/, '() ');
} else if (newVal.length <= 10) {
newVal = newVal.replace(/^(\d{0,3})(\d{0,3})(\d{0,4})/, '() -');
} else {
newVal = newVal.substring(0, 10);
newVal = newVal.replace(/^(\d{0,3})(\d{0,3})(\d{0,4})/, '() -');
}
this.ngControl.valueAccessor.writeValue(newVal);
}
}
您可以轻松安装 ngx-mask 包,然后像这样指定您理想的面具:
mask="(000) 000-000"
< input type="text" mask="(000) 000-000" />
我在 Angularjs 中看到了很多格式化 phone 数字输入字段的解决方案,但我在 Angular 上找不到任何东西 7. 我本质上想要的是用户在文本字段中键入以下内容:
123456789
并将文本字段的输入格式设置为:
(123) 456-789
我该怎么做呢?我找到了以下正则表达式来验证它:
^(\([0-9]{3}\) |[0-9]{3}-)[0-9]{3}-[0-9]{4}$
您可以使用 Phone 掩码指令处理此问题,如下所示,
export class PhoneMaskDirective {
constructor(public ngControl: NgControl) { }
@HostListener('ngModelChange', ['$event'])
onModelChange(event) {
this.onInputChange(event, false);
}
@HostListener('keydown.backspace', ['$event'])
keydownBackspace(event) {
this.onInputChange(event.target.value, true);
}
onInputChange(event, backspace) {
let newVal = event.replace(/\D/g, '');
if (backspace && newVal.length <= 6) {
newVal = newVal.substring(0, newVal.length - 1);
}
if (newVal.length === 0) {
newVal = '';
} else if (newVal.length <= 3) {
newVal = newVal.replace(/^(\d{0,3})/, '()');
} else if (newVal.length <= 6) {
newVal = newVal.replace(/^(\d{0,3})(\d{0,3})/, '() ');
} else if (newVal.length <= 10) {
newVal = newVal.replace(/^(\d{0,3})(\d{0,3})(\d{0,4})/, '() -');
} else {
newVal = newVal.substring(0, 10);
newVal = newVal.replace(/^(\d{0,3})(\d{0,3})(\d{0,4})/, '() -');
}
this.ngControl.valueAccessor.writeValue(newVal);
}
}
您可以轻松安装 ngx-mask 包,然后像这样指定您理想的面具:
mask="(000) 000-000"
< input type="text" mask="(000) 000-000" />