es6-map – Tarik Billa

Update the attribute value of an object using the map function in ES6

January 3, 2024 by Tarik

try this, ES6 Object.assign() to create copy of array element and update new object. let schools = [{ name: ‘YorkTown’, country: ‘Spain’ }, { name: ‘Stanford’, country: ‘USA’ }, { name: ‘Gymnasium Achern’, country: ‘Germany’ } ]; const editSchoolName = (schools, oldName, name) => { return schools.map(item => { var temp = Object.assign({}, item); if … Read more

Using Array objects as key for ES6 Map

June 14, 2023 by Tarik

Understand that ES2015 Map keys are compared (almost) as if with the === operator. Two array instances, even if they contain the same values, do not ever compare as === to each other. Try this: var a = new Map(), key = [‘x’, ‘y’]; a.set(key, 1); console.log(a.get(key)); Since the Map class is intended to be … Read more