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How to use mappedPersisted method in storybook-root

Best JavaScript code snippet using storybook-root

ArgsStore.ts

Source:ArgsStore.ts

1import type { StoryId, Args } from '@storybook/csf';2import type { Story } from './types';3import { combineArgs, mapArgsToTypes, validateOptions, deepDiff, DEEPLY_EQUAL } from './args';4function deleteUndefined(obj: Record<string, any>) {5  // eslint-disable-next-line no-param-reassign6  Object.keys(obj).forEach((key) => obj[key] === undefined && delete obj[key]);7  return obj;8}9export class ArgsStore {10  initialArgsByStoryId: Record<StoryId, Args> = {};11  argsByStoryId: Record<StoryId, Args> = {};12  get(storyId: StoryId) {13    if (!(storyId in this.argsByStoryId)) {14      throw new Error(`No args known for ${storyId} -- has it been rendered yet?`);15    }16    return this.argsByStoryId[storyId];17  }18  setInitial(story: Story<any>) {19    if (!this.initialArgsByStoryId[story.id]) {20      this.initialArgsByStoryId[story.id] = story.initialArgs;21      this.argsByStoryId[story.id] = story.initialArgs;22    } else if (this.initialArgsByStoryId[story.id] !== story.initialArgs) {23      // When we get a new version of a story (with new initialArgs), we re-apply the same diff24      // that we had previously applied to the old version of the story25      const delta = deepDiff(this.initialArgsByStoryId[story.id], this.argsByStoryId[story.id]);26      this.initialArgsByStoryId[story.id] = story.initialArgs;27      this.argsByStoryId[story.id] = story.initialArgs;28      if (delta !== DEEPLY_EQUAL) {29        this.updateFromDelta(story, delta);30      }31    }32  }33  updateFromDelta(story: Story<any>, delta: Args) {34    // Use the argType to ensure we setting a type with defined options to something outside of that35    const validatedDelta = validateOptions(delta, story.argTypes);36    // NOTE: we use `combineArgs` here rather than `combineParameters` because changes to arg37    // array values are persisted in the URL as sparse arrays, and we have to take that into38    // account when overriding the initialArgs (e.g. we patch [,'changed'] over ['initial', 'val'])39    this.argsByStoryId[story.id] = combineArgs(this.argsByStoryId[story.id], validatedDelta);40  }41  updateFromPersisted(story: Story<any>, persisted: Args) {42    // Use the argType to ensure we aren't persisting the wrong type of value to the type.43    // For instance you could try and set a string-valued arg to a number by changing the URL44    const mappedPersisted = mapArgsToTypes(persisted, story.argTypes);45    return this.updateFromDelta(story, mappedPersisted);46  }47  update(storyId: StoryId, argsUpdate: Partial<Args>) {48    if (!(storyId in this.argsByStoryId)) {49      throw new Error(`No args known for ${storyId} -- has it been rendered yet?`);50    }51    this.argsByStoryId[storyId] = deleteUndefined({52      ...this.argsByStoryId[storyId],53      ...argsUpdate,54    });55  }...

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