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角度转换服务,在嵌套的json中插入参数

ngx-translate angular-translate angular javascript

11

Aqeel Ashiq · 技术社区 · 8 年前

  "SampleField": {
    "SampleValidation": {
      "MIN": "Value should not be less than {{min}}", 
      "MAX": "Value should not be more than {{max}}", 
    }
  }

我的角度代码:

ngOnInit(): void {
  this.translateService.get('SampleField.Validation', {
    // using hard coded value just as a sample
    min: 0, max: 2000
  }).subscribe(translation => {
    console.log(translation);
  });
}

预期输出:

{
    MIN: "Value should not be less than 0",
    MAX: "Value should not be greater than 2000"
}

{
    MIN: "Value should not be less than {{min}}",
    MAX: "Value should not be greater than {{max}}"
}

2 回复 | 直到 4 年前

1

11

Sibeesh Venu 4 年前

根据 source of ngx-translate 插值仅适用于字符串:

export abstract class TranslateParser {
/**
 * Interpolates a string to replace parameters
 * "This is a {{ key }}" ==> "This is a value", with params = { key: "value" }
 * @param expr
 * @param params
 * @returns {string}
 */
abstract interpolate(expr: string | Function, params?: any): string;

this.translateService.get([
    'SampleField.Validation.MIN', 
    'SampleField.Validation.MAX'
  ], {
  // using hard coded value just as a sample
  min: 0, max: 2000
}).subscribe(translation => {
  console.log(translation);
});

2

1

Sibeesh Venu 4 年前

您也可以使用 translate 管道,以便您可以删除对组件的附加服务依赖关系。

<p *ngIf="!item?.isRemovable">
{{'i18n.dashboard.heading' 
| translate:{'TEXTTOFIND': 'STRINGTOREPLACE'} }}
</p>

i18n.test.key 有这个 TEXTTOFIND 插值。类似下面的内容。

"heading": "This is with the interpolated {{TEXTTOFIND}} text."

{{}} 在标题字符串和 STRINGTOREPLACE