Menu

gitpiper

checkProp javascript Code Snippet in 2023

functionobjectintermediate

Last Updated: 2 February 2023

Creates a function that will invoke a predicate function for the specified property on a given object.

  • Return a curried function, that will invoke predicate for the specified prop on obj and return a boolean.
const checkProp = (predicate, prop) => obj => !!predicate(obj[prop]);
const lengthIs4 = checkProp(l => l === 4, 'length'); lengthIs4([]); // false lengthIs4([1, 2, 3, 4]); // true lengthIs4(new Set([1, 2, 3, 4])); // false (Set uses Size, not length) const session = { user: {} }; const validUserSession = checkProp(u => u.active && !u.disabled, 'user'); validUserSession(session); // false session.user.active = true; validUserSession(session); // true const noLength = checkProp(l => l === undefined, 'length'); noLength([]); // false noLength({}); // true noLength(new Set()); // true

javascript snippet similar to checkProp For You in February 2023

Subscribe to our Newsletter

Subscribe to get resources directly to your inbox. You won't receive any spam! ✌️

© 2023 GitPiper. All rights reserved

Rackpiper Technology Inc

Company

About UsBlogContact

Subscribe to our Newsletter

Subscribe to get resources directly to your inbox. You won't receive any spam! ✌️