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How to wrap async function calls into a sync function in Node.js or Javascript?
...
/*****sync function defined here *******/
function find_user(req_json, callback) {
process.nextTick(function () {
users.find(req_json,function (err,data)
{
if (!err) {
callback(null, data);
} else {
...
How to auto-reload files in Node.js?
...e. I just add more parameters for debugging and watching options.
package.json
"scripts": {
"dev": "cross-env NODE_ENV=development nodemon --watch server --inspect ./server/server.js"
}
The command: nodemon --watch server --inspect ./server/server.js
Whereas:
--watch server Restart the...
File uploading with Express 4.0: req.files undefined
...
The body-parser module only handles JSON and urlencoded form submissions, not multipart (which would be the case if you're uploading files).
For multipart, you'd need to use something like connect-busboy or multer or connect-multiparty (multiparty/formidable i...
How do you serve a file for download with AngularJS or Javascript?
...wnload using following code.
in html
<a class="btn" ng-click="saveJSON()" ng-href="{{ url }}">Export to JSON</a>
In controller
$scope.saveJSON = function () {
$scope.toJSON = '';
$scope.toJSON = angular.toJson($scope.data);
var blob = new Blob([$scope.toJSON...
How do I render a partial of a different format in Rails?
I'm trying to generate a JSON response that includes some HTML. Thus, I have /app/views/foo/bar.json.erb :
11 Answers
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Send an Array with an HTTP Get
...or the same use case. These schemes have mostly been obsoleted by AJAX and JSON. The idea that this should be generalised to type systems is very far fetched, to be honest.
– Martijn Pieters♦
Sep 22 at 20:11
...
What character encoding should I use for a HTTP header?
...ecial chars like ✰ (Which is not ASCII)
Tip: you can encode anything in JSON.
Edit: may not be obvious at first, the character encoding defined in the header only applies for the response body, not for the header itself. (As it would cause a chicken-&-egg problem.)
I'd like to sum up all ...
Command to remove all npm modules globally?
...TY errors when running npm install again. I had to delete my package-lock.json file as well.
– ToastyMallows
Apr 25 '18 at 16:00
1
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What is the most efficient way to store tags in a database?
...uff, Postgres version 9.4 and up has an option of storing a record of type JSON text array.
Your schema would be:
Table: Items
Columns: Item_ID:int, Title:text, Content:text
Table: Tags
Columns: Item_ID:int, Tag_Title:text[]
For more info, see this excellent post by Josh Berkus:
http://www.data...
assign multiple variables to the same value in Javascript
...eRight,
mouseDown, touchDown] = Array(6).fill(false);
console.log(JSON.stringify({
moveUp, moveDown,
moveLeft, moveRight,
mouseDown, touchDown
}, null, ' '));
// NOTE: If you want to do this with objects, you would be safer doing this
let [obj1, obj2, obj3] = Array(3).f...