I'm encountering an issue with the following code snippet. JShint is flagging it with "Expected an assignment or function and instead saw an expression".
function checkVal(inputField) {
( inputField.val() === '' ) ? inputField.prev('.cd-label').removeClass('float') : inputField.prev('.cd-label').addClass('float');
}
});
The caution is alerting you that the upcoming line may contain a mistake or bug:
( inputField.val() === '' ) ? inputField.prev('.cd-label').removeClass('float') : inputField.prev('.cd-label').addClass('float');
This is an expression that utilizes the ternary operator which returns the value after the ? if the expression before it is true, or the value after the : if not. Essentially, it functions like a concise if statement that results in an assignment.
To eliminate the caution, you should assign it to a variable in this manner:
var yourVariable = ( inputField.val() === '' ) ? inputField.prev('.cd-label').removeClass('float') : inputField.prev('.cd-label').addClass('float');
However, in your situation, you may not actually want to assign this to anything, so it would be better to use an if statement instead.
Make sure to incorporate an if statement in this section of your code.
if( userInput.val() === '' ){
userInput.prev('.label').removeClass('active');
}
else{
userInput.prev('.label').addClass('active');
}
Remember, the ternary operator (?:) is best used when it returns a value. For example:
var result = condition ? 'yes' : 'no';
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