js check for not empty string code example
Example 1: is var is not blank then display value in javascript
if(data !== null && data !== '') {
// do something
}
Example 2: javascript if string empty
// Test whether strValue is empty or is None
if (strValue) {
//do something
}
// Test wheter strValue is empty, but not None
if (strValue === "") {
//do something
}