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Original file line number Diff line number Diff line change
@@ -1,12 +1,12 @@
import { Component, EventEmitter, Input, Output } from '@angular/core';
import { I18nService } from 'xforge-common/i18n.service';
import { TranslocoModule } from '@ngneat/transloco';
import { MatFormField } from '@angular/material/form-field';
import { MatSelect } from '@angular/material/select';
import { MatOption } from '@angular/material/autocomplete';
import { MatIconButton } from '@angular/material/button';
import { MatTooltip } from '@angular/material/tooltip';
import { MatFormField } from '@angular/material/form-field';
import { MatIcon } from '@angular/material/icon';
import { MatSelect } from '@angular/material/select';
import { MatTooltip } from '@angular/material/tooltip';
import { TranslocoModule } from '@ngneat/transloco';
import { I18nService } from 'xforge-common/i18n.service';

/**
* This component is used to choose a book and chapter. Actual navigation on the basis of the selection is the
Expand Down Expand Up @@ -63,7 +63,7 @@ export class BookChapterChooserComponent {

isPrevChapterDisabled(): boolean {
const index = this.chapters.findIndex(c => c === this.chapter);
return index === 0;
return index <= 0;
}

nextChapter(): void {
Expand Down
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