nl_tokens: Check if there are any placeholders on the screen and trigger a timing event when all the placeholders are gone
pl_tokens: function checkActivePlaceholders ( ) { const placeholdersCount = activePlaceholders . length ; debug ( ` ${ placeholdersCount } ` ) ; if ( placeholdersCount > 0 ) { activePlaceholderEverDetected = true ; } // record event if there ever were any placeholders and if they all just disappeared if ( activePlaceholderEverDetected && placeholdersCount === 0 ) { // tell tracks to record duration const { startTime , trigger } = determineTimingType ( ) ; const duration = Math . round ( performance . <mask> ( ) - startTime ) ; debug ( ` ${ duration } ${ trigger } ` ) ; analytics . timing . record ( ` ${ trigger } ` , duration ) ; stopMutationObserver ( ) ; } }