javascript - What is the difference between `this` and `var` in a function. -

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this question has answer here:

i have following javascript code project @ school. (this code provided me.) can explain difference between var setdatarequest , this.setdatarequest understand happening in functions, not why functions created in fashion. similar overloading?

tele.forms.controller = new function () {   var _requestdata;    this.setrequestdata = function (requestdata) {         _requestdata = requestdata;   };    var setrequestdata = function () {     var fields = $('.formsmaintable');     var reqdata = ['request_record_id', 'date_submitted', 'requester_id'];     ....     ....   };    ....   .... };

this.setrequestdata available @ tele.forms.controller.setrequestdata, while var setrequestdata available internals of function. think of this.setrequestdata api of tele.forms.controller object, , setrequestdata 1 of internal methods allows api work (i'm making assumption ... makes connections between this.setrequestdata , setrequestdata).


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