query: Check string value isblank or null in lightning Component's controller
positive_passages.docid: 145303
positive_passages.text: Equivalent of !$A.util.isEmpty() in LWC
negative_passages.docid: 15097
negative_passages.text: Is there any difference between IS NULL and =NULL
negative_passages.docid: 15435
negative_passages.text: how to check if $1 and $2 are null?
negative_passages.docid: 5640
negative_passages.text: How to check a string against null in java?
negative_passages.docid: 850
negative_passages.text: Any simple way to share constants between helper methods in a Lightning Component?
negative_passages.docid: 29684
negative_passages.text: How to check if an object is nullable?
negative_passages.docid: 54143
negative_passages.text: Why is the default value of the string type null instead of an empty string?
negative_passages.docid: 98704
negative_passages.text: Is There a Better Way of Checking Nil or Length == 0 of a String in Ruby?
negative_passages.docid: 49446
negative_passages.text: How to check for an undefined or null variable in JavaScript?
negative_passages.docid: 16721
negative_passages.text: Reset lightning:input textbox Field Value to Null
negative_passages.docid: 104574
negative_passages.text: Best way to test if a generic type is a string? (C#)
negative_passages.docid: 155078
negative_passages.text: lightning:select - Set default value based on sObject List from apex controller
negative_passages.docid: 140882
negative_passages.text: Proper way to detect empty/blank text
negative_passages.docid: 56038
negative_passages.text: How do I get lightning:datatable to do some undocumented thing X?
negative_passages.docid: 30815
negative_passages.text: Evaluate empty or null JSTL c tags
negative_passages.docid: 153860
negative_passages.text: Is there a way to detect if a Lightning Component is running in a Community or in Lightning Experience?
negative_passages.docid: 28348
negative_passages.text: How do I handle null or optional DLL struct parameters