对我来说,i18n-iso-countries的文档有些混乱。我有一个Angular 7项目,只想根据用户当前的语言以注册表格的形式向用户显示所有国家/地区。
所以我知道i18nIsoCountries.getNames("en")
为我获取了所有名称和一种JSON输出。使用this.translateService.currentLang
可以轻松获得当前的语言,但是目前我有一个静态的书面JSON文件,仅用于英语,并以我的形式显示。
我也想过滤我可以写Ger的国家,并得到德国的建议。该代码目前已实现并且可以运行,但是我不知道如何使用该库。
RegistrationComponent:
import country from '../../assets/countriesJson.json';
export interface Country {
name: string;
code: string;
}
export class RegistrationComponent implements OnInit {
@ViewChild('stepper') stepper: MatStepper;
filteredCountries: Observable<Country[]>;
countryList: Country[] = country.countries;
ngOnInit() {
this.filteredCountries = this.personalForm.controls['country'].valueChanges
.pipe(
startWith(''),
map(value => this._filterCountries(value))
);
}
private _filterCountries(value: string): Country[] {
const filterValue = value.toLowerCase();
return this.countryList.filter(country => country.name.toLowerCase().indexOf(filterValue) === 0);
// const filterValue = value.toLowerCase(); Variante für Suche bei dem Begriff nur enthalten ist Ger -> AlGERia
// return this.countryList.filter(option => option.name.toLowerCase().includes(filterValue));
}
CountriesJson(缩写形式):
{
"countries": [
{"name": "Afghanistan", "code": "AF"},
{"name": "Åland Islands", "code": "AX"} ]
}
html:
<mat-form-field class="field-sizing">
<input matInput required placeholder="{{ 'REGISTRATION.COUNTRY' | translate }}" name="country"
id="country" [matAutocomplete]="auto" formControlName="country"
[ngClass]="{ 'is-invalid': g.country.touched && g.country.errors }" />
<mat-autocomplete autoActiveFirstOption #auto="matAutocomplete">
<mat-option *ngFor="let country of filteredCountries | async" [value]="country.name">
{{country.name}}
</mat-option>
</mat-autocomplete>
<mat-error class="invalid-feedback"
*ngIf="g.country.touched && g.country.errors && g.country.errors.required">
{{ 'REGISTRATION.COUNTRY' | translate }} {{ 'VALIDATION.REQUIRED' | translate }}
</mat-error>
</mat-form-field>
所以我脑子里的想法是用i18nIsoCountries.getNames("en")
答案 0 :(得分:0)
我解决了:
module Test
def foo
"bar"
end
end
include Test
foo # "bar"
和html部分:
countries = [] as Array<string>
filteredCountries: Observable<string[]>;
ngOnInit() {
this.startDate.setFullYear(this.startDate.getFullYear() - 18);
this.buildForm();
this.filteredCountries = this.personalForm.controls['country'].valueChanges
.pipe(
startWith(''),
map(value => this._filter(value))
);
i18nIsoCountries.registerLocale(require("i18n-iso-countries/langs/en.json"));
i18nIsoCountries.registerLocale(require("i18n-iso-countries/langs/de.json"));
this.currentLanguage = this.translateService.currentLang;
indexedArray = i18nIsoCountries.getNames(this.currentLanguage);
for (let key in indexedArray) {
let value = indexedArray[key];
this.countries.push(value);
}
}
private _filter(value: string): string[] {
var filterValue;
if (value) {
filterValue = value.toLowerCase();
} else {
filterValue = "";
}
return this.countries.filter(option => option.toLowerCase().startsWith(filterValue));
}
ngAfterContentChecked() {
this.cdRef.detectChanges();
if (this.currentLanguage != this.translateService.currentLang) {
indexedArray = i18nIsoCountries.getNames(this.translateService.currentLang);
this.countries = [];
for (let key in indexedArray) {
let value = indexedArray[key];
this.countries.push(value);
}
this.currentLanguage = this.translateService.currentLang;
this.personalForm.get('country').updateValueAndValidity();
}
}