When filtering the input against the cached query result, I convert both the user input value and database values to lowercase for comparison.
result = this.cachedResults.filter(f => f.prj.toLowerCase().indexOf((this.sV).toLowerCase()) !== -1);
This method works well unless there is a NULL value in the cached results. How can I ignore or escape records with NULL values in this case?
When f.prj is NULL, the absence of this.sV means that specific f should be eliminated, right? If so:
result = this.cachedResults.filter(f => f.prj && f.prj.toLowerCase().indexOf((this.sV).toLowerCase()) !== -1);
Make sure to verify the existence of the property prj in your object before applying toLowerCase() on it.
result = this.cachedResults.filter(f => {
return f.prj ? (f.prj.toLowerCase().indexOf((this.sV).toLowerCase()) !== -1) : false
});
Is this approach suitable for you?
If the issue is that (this.sV) is not present, then you should also confirm that beforehand.
To handle a null value in f.prj, you can try the following approach:
filteredResults = this.cachedResults.filter(entry => {
if (!entry.prj) {
return false; // You can also choose to return true here
}
return entry.prj.toLowerCase().indexOf((this.searchValue).toLowerCase()) !== -1);
});
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