Javascript Map Is Not A Function: Web i am trying to extract date, expenseinfo, category and amount from the expenses array. Web the object.map is not a function error occurs because the map () method is not implemented on objects. Web for example, javascript objects have no map function, but the javascript array object does.

Javascript Map Is Not A Function

User.map is not a function. Web syntax js map(callbackfn) map(callbackfn, thisarg) parameters callbackfn a function to execute for each. Window.onload = function(){ var allimgs = document.getelementsbyclassname(pft);.