Strategies for Dealing with 'No Search Results' in Your Search Functionality

Question

Strategies for Dealing with 'No Search Results' in Your Search Functionality

I am currently facing an issue with displaying "No Results Found" when a user utilizes my search feature. The current problem is that "No Results Found" appears immediately on the screen and then disappears while a search query is being processed, only to reappear if no results are found. Ideally, I would like "No Results Found" to display only after a search query has been triggered and evaluated. Is there a more effective way to achieve this rather than using a timeout method? Below is the function code I have implemented:

public get noResultsFound(): boolean
{
    if (this.query && !this._isSearching && !this.hasResults) {
        return true;
    }
}

Below is how I have structured my view code:

<div *ngIf="inputHasFocus && noResultsFound" class="no-results-found">No Results Found</div>

javascript angular typescript

Answer 1

Answer №1

Looking for a solution? Promises might be the answer! 😄 Check out this link for more information on Promises.

Here's a simplified version of how you can use promises in your code:

search = (paramObj): Promise<SomeDataClass> => {
    // Your search logic goes here
}

requestSearch() {
    this.search(null).then((result) => {
        if (result.length === 0)
        {
            // Handle case when there are no results
        }
        else{
            // Show the results here
        }
    })
}

If you want to see a more comprehensive example, check out this snippet:

class example {
    public someBool = false;

    public search = (paramObj): Promise<Array<string>> => {
        this.someBool = !this.someBool;
        return new Promise<Array<string>>((resolver) => {
            // Simulating a time-consuming operation
            setTimeout(() => {
                if (this.someBool) {
                    resolver([]);
                } else {
                    resolver(["hi","there"]);
                }
            }, 1000)
        });
    }

    public requestSearch() {
        this.search(null).then((result) => {
            if (result.length === 0) {
                console.log("No results found")
            }
            else {
                console.log(result)
            }
        })
    }
}

Answer 2

Looking for a solution? Promises might be the answer! 😄 Check out this link for more information on Promises.

Here's a simplified version of how you can use promises in your code:

search = (paramObj): Promise<SomeDataClass> => {
    // Your search logic goes here
}

requestSearch() {
    this.search(null).then((result) => {
        if (result.length === 0)
        {
            // Handle case when there are no results
        }
        else{
            // Show the results here
        }
    })
}

If you want to see a more comprehensive example, check out this snippet:

class example {
    public someBool = false;

    public search = (paramObj): Promise<Array<string>> => {
        this.someBool = !this.someBool;
        return new Promise<Array<string>>((resolver) => {
            // Simulating a time-consuming operation
            setTimeout(() => {
                if (this.someBool) {
                    resolver([]);
                } else {
                    resolver(["hi","there"]);
                }
            }, 1000)
        });
    }

    public requestSearch() {
        this.search(null).then((result) => {
            if (result.length === 0) {
                console.log("No results found")
            }
            else {
                console.log(result)
            }
        })
    }
}

Answer 3

Answer №2

By making a simple adjustment to the function's logic, I was able to avoid the need for a debounce timeout and prevent the premature triggering of "No Results Found". Here is the updated code snippet that resolved the issue:

public checkForNoResults(): boolean
{
    if (!Object.isNullOrUndefined(this._results) && this._results.length < 1) {
        return true;
    } 
}

Answer 4

By making a simple adjustment to the function's logic, I was able to avoid the need for a debounce timeout and prevent the premature triggering of "No Results Found". Here is the updated code snippet that resolved the issue:

public checkForNoResults(): boolean
{
    if (!Object.isNullOrUndefined(this._results) && this._results.length < 1) {
        return true;
    } 
}

Strategies for Dealing with 'No Search Results' in Your Search Functionality

Answer №1

Answer №2

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