How to use

where

function

in

LoDashStatic

var updateTypingStatus = function (isTyping, userId){
     var currentUser = getUser(userId);

     if(isTyping && currentUser){
       currentUser.typing = true;
     }else if (!isTyping && currentUser){
       currentUser.typing = false;   
     }

     if(currentUser){
       var typingUsers = _.where(users, { typing : true });

       var numberTyping = 0;
       if (typingUsers.length){
         numberTyping = typingUsers.length;
       }

       io.emit('set-number-typing-users', currentUser.displayText, numberTyping);
     }

   }

 return _.where(_contacts, { 'id': contactId })[0];
},
 var existing = _.where(_contacts, { 'id': contact.id })[0];
 if (!existing) {
  contact.is_new = true;
 var existing = _.where(_contacts, { 'id': contact.id })[0];
 existing.editing = true;
 this.trigger(_contacts);
 var existing = _.where(_contacts, { 'id': contact.id })[0];
 if (existing) {
  if (existing.is_new) {

var passingTests = _.where(cleanTests, {state: 'passed'});
var failingTests = _.where(cleanTests, {state: 'failed'});
var pendingTests = _.where(cleanTests, {pending: true});
var skippedTests = _.where(cleanTests, {skipped: true});
var duration = 0;