javascript - .every() not waiting for HTTP request -

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• how can wait set of asynchronous callback functions? 6 answers

i running http request using popular node-request module each item in array; running function @ last item of array. code goes this:

const request = require('request'); var arr = ['john', 'jane', 'marry', 'scarlet']; var x = 0; arr.every(function (i) {     x++;     /*instead of waiting request, adds x , moves on making x     3 when first request runs*/     request({         url: 'http://localhost:8810/getlastname?firstname=' +     }, function (error, response, body) {         //execute code         if(x==arr.length){              //therefore function run each item in array.             // should run once per array.         }     }) return true; }) 

i hoping achieve without writing ton of code therefore keeping code nice , neat.

edit: i'm not trying run in order. don't mind running in parallel i'm trying trigger function once on completion.

instead of using variable x, use second argument every local every call function:

arr.every(function (i, j) {  // ...  if (j+1==arr.length) ... 

while variable x common iterations, each iteration has own version of j, since declared within callback closure. therefore not give issue experiencing x.