SyntaxFix

[javascript] return value after a promise

Use a pattern along these lines:

function getValue(file) {
  return lookupValue(file);
}

getValue('myFile.txt').then(function(res) {
  // do whatever with res here
});

(although this is a bit redundant, I'm sure your actual code is more complicated)

Examples related to javascript

• need to add a class to an element • How to make a variable accessible outside a function? • Hide Signs that Meteor.js was Used • How to create a showdown.js markdown extension • Please help me convert this script to a simple image slider • Highlight Anchor Links when user manually scrolls? • Summing radio input values • How to execute an action before close metro app WinJS • javascript, for loop defines a dynamic variable name • Getting all files in directory with ajax

Examples related to node.js

• Hide Signs that Meteor.js was Used • Querying date field in MongoDB with Mongoose • SyntaxError: Cannot use import statement outside a module • Server Discovery And Monitoring engine is deprecated • How to fix ReferenceError: primordials is not defined in node • UnhandledPromiseRejectionWarning: This error originated either by throwing inside of an async function without a catch block • dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.62.dylib error running php after installing node with brew on Mac • internal/modules/cjs/loader.js:582 throw err • DeprecationWarning: Buffer() is deprecated due to security and usability issues when I move my script to another server • Please run `npm cache clean`

Examples related to promise

• Axios handling errors • typescript: error TS2693: 'Promise' only refers to a type, but is being used as a value here • Syntax for async arrow function • Angular 2: How to call a function after get a response from subscribe http.post • How to use fetch in typescript • Returning Promises from Vuex actions • Use async await with Array.map • Getting a UnhandledPromiseRejectionWarning when testing using mocha/chai • using setTimeout on promise chain • Why is my asynchronous function returning Promise { <pending> } instead of a value?

Examples related to q

• How do you properly return multiple values from a Promise? • How do I tell if an object is a Promise? • What's the difference between returning value or Promise.resolve from then() • Resolve promises one after another (i.e. in sequence)? • return value after a promise • Aren't promises just callbacks? • Angularjs $q.all