creating array of objects usinng reduce js

Solutions on MaxInterview for creating array of objects usinng reduce js by the best coders in the world

showing results for - "creating array of objects usinng reduce js"

1const posts = [
2    {id: 1, category: "frontend", title: "All About That Sass"},
3    {id: 2, category: "backend", title: "Beam me up, Scotty: Apache Beam tips"},
4    {id: 3, category: "frontend", title: "Sanitizing HTML: Going antibactirial on XSS attacks"}
5];
6
7const categoryPosts = posts.reduce((acc, post) => {
8    let {id, category} = post;
9    return {...acc, [category]: [...(acc[category] || []), id]};
10}, {});
11

1var arr = [{x:1},{x:2},{x:4}];
2
3arr.reduce(function (a, b) {
4  return {x: a.x + b.x}; // returns object with property x
5})
6
7// ES6
8arr.reduce((a, b) => ({x: a.x + b.x}));
9
10// -> {x: 7}

similar questions

reduce javascript acc became numeber insted array map and reduce an array in js es6 reduce return promise js reduce a array of straing how to use reduce in javascript how to find avererage of obj properties using reduce method object entries reduce how to flatten array with reduce in javascript javascript reduce array of objects group by property array of obj to obj with reduce array reduce reduce method in javascript array of bjects js reduce using slice and reduce together in javascript javascript reduce array of objects array reduce and count based on proeperty js syntax of reduce in js js two value from array after reduce

queries leading to this page

creating array of objects usinng reduce js javascript sum array of objects reduce reduce array to object aggregate javascript javascript reduce with array of objects sum up the instances of items in an array reduce js reduce array into array of objects numbers are not getting added in array reduce reduce on objects inside an array create object from array in javascript reduce order and reduce array object js array of objects using reduce how to reduce array of objects object array es6 reduce reduce object array to simple array javascript js using reduce on array of objects reduce method of objects of an array javascript reducer array of objects object reduce array find javascript array object reduce es6 reduce object how to reduce array of object what is the currentindex in reduce method js reduce js object array reduce is not allowed javascript array of object reduce reduce js object array javascript object to reduce array js array object reduce reduce array of objects js populate object with properties javascript reduce reduce function array of objects js reduce does it maintain a reference to the original array iteration using reduce method in javascript javascript reduce create object from array reduce react meyhod does the accumulator of reduce return an array reduce object of arrays reduce an array of object js reduce sum array of objects javascript reduce to an object string reduce in js array to object reduce reduce array of objects es6 into number javascript reduce create new object from array turn object into array with reduce js how to reduce function parameters reduce with objects example how to create an array using array reduce when to use reduce method in javascript javascript array reduce accumulator object reduce arr to object reduce array to an object javascript reduce an array of objects js object properties to array reduce reduce object to array javascsirpt using reduce to sum array of object array prototype reduce 28reducer 2c 3finitialvalue 29 js array reduce object js array reduce to object return array from array reduce object array reduce how to use reduce for array of objects array inside array reduce javascript reduce array of objects to an object js reduce object from array array to object with reduce syntax of reduce function in javascript arrray of object reduce in js passing array through function reduce javascript javascript reduce method javascript reduce array to array of objects javascript reduce object entries use reduce with initial value javascript reduce es6 object prop reduce object array in single object array reduce javascript objects return object of objects in reduce javascript reduce array of objects to array of values js reduce add object values accumulate js string alaphets based on their index how to reduce and object to array of objects javascript reduce object like an array reduce object value reduce js array of objects how to reduce an array of objects in javascript use reduce to get total of an array of objects javascript javascript reduce on object js reduce array of objects value javascript array to object reduce array reduce by two convert array to object javascript reduce array reduce objects in js use reduce on array of objects array objects reduce array reduce object javascript reduce method on array of objects reduce on array of objects in javascript return object from reduce how to add new properties to object wit reducejavascript js reduce array into object use reduce method to create an array of objects how to reduce and object to array of objects js array reduce objects reduce object values can i ccall reduce on a js set how put object to array in reducer array reduce accumulator object reduce in array of objects js reduce to sum javascript reduce sum object values reduce list of objects javascript using array reduce with 22array of objects 22 javascript reduce with object array reduce an array of object javascript javascript reduce array of objects array reduce explained use reduce for objects in array javascript reduce array of objects to number using reducer to create single object with array of objects javascript reduce value in array of objects javascript array to object with reduce javascript aggregate values array reduce with objects jasvscript javascript reduce source array reduce array of objects to object js array reduce to construct object reduce array problem in js js reduce object entries does reduce work on an javascript object array reduce object accumulator reduce javascript with object reduce es6 array reduce array object doesnt work recuce js react array reduce with object js array reduce an array of objects reduce obj to arrays javascript reduce from array to object examples of a reduce method javascript reduce on array of objects array to object using reduce es6 reduce array to object js array of object reduce js reduce to an object javascript reduce array to object js how to use reduce on array of objects js reduce objects into array reduce array object javascript reduce to a value of object in array javascript array reducer array reduce in javascript es6 reduce sum array of objects does reduce return a new array in js array reduce method reduce array by value of object args reduce javascript reduce in js es6 how to reduce array of object without reduce reduce object use reduce to compare property values in js js reduce array of objects reduce create object from array js reduce object of objects to array of objects reduce obj to arr js javascript reduce object javascript reduce sum array of objects reduce return array of objects es js using reduce on object array reduce in javascript on array of objects how to apply array reduce on objects in js reduce method to sum by category object javascript reduce create new object what does reduce do in javascript reduce array of objects to number reduce an object javascript reduce with array of objects array of object reduce js reduce on array of objects javascript use reduce to create a object of an array why javascrip array sum is using reduce js reduce object to array string array reduce object array reduce on object in javascript 5c array object reduce reduce function es6 reduce function add object array values array of object reduce reduce react array reduce create object with count array reduce to object javascript reduce es6 examples javascript object reduce reduce array of objects to array mdn reduce on object js sum using reduce reduce array to object javascript reduce on object javascript reduce object to array js reduce sum object what does the reduce function do in javascript how to reduce array of object without reduce node how to find object properties values by using reduce method in javascript reduce entries js object js reduce object array reduce array on and opeartion js javascript reduce object array object of arrays of aray in reduce how to reduce over 2 arrays to create an new object in javascript js create new array with reduced set apply array reduce on objects es6 js array reduce array of objects javascript return array of objects with reduce reduce array to object js reduce array of objects object from array reduce convert array of object into object using reduce array reduce to object return array of objects fromaarray reduce reduce in reacy access object property in array using reduce js js reduce object to array reduce object property to array reduce method in an object array array to json javascript reduce reduce array return object array reduce return object js reduce sum array of objects javascript using reduce to build object reduce object array javascript javascript reduce object ot array reduce javascript array of objects js array to object reduce object of objects in reduce javascript use of reduce function in js convert array to object reduce how to use reduce with an array of objects reduce obj to array js reduce in object js reduce array of object to array react reduce array of objects js reduce array to object return acc 2b 2b d js javascript reduce turn object into array array reduce on array of objects array reduce one element of object js js reduce array into object reduce an array of object j javascript reduce array of objects subtraction reduce on value in array of objects javascript reduce array of objects to array react reduce how to reduce amount from objects of an array reducer object to array how to use reduce on array of objects in javascript js reduce on object js array reduce sum values js reduce on array of objects object in array reduce reduce method in array javascript reduce array of objects in javascript array reduce object array es6 js object to array reduce js count using array reduce build a new object using reduce javascript find the sun using reduce in js how to apply reduce method to array of objects javascript new set reduce objects from array javascript using reduce reduce array of object reduce javascript with property object array es6 reduce array of objects how to use array reduce in javascript object array reduce js with array of objects js reduce object javascript reduce create array of objects reduce an array of objects javascript reduce on an array of objects reduce object of array js reduce array by adding elements reduce in javascript array of objects reduce reduce javascript reduce object javascript how to create an object with 2 arrays reduce js reduce elements in array objects javascript create an accumulator whose value are the sum of the precceedding value in an array array reduce find field 3d value javascript reduce array of objects example reduce array into object array of objects javascript reduce get value how to convert object to array with reduce javascript array reduce for object arrays javascript array to object reduce how to reduce a javascript array to an object how to use javascript reduce to sum values from an array of objects reduce array of objects by adding elements reduce object array 7c 7c javascript reduce array reduce array of objects reduce with array of object js reduce turn objects in array es6 reduce object to value array reduce object values to array in js reduce object entries reduce object to array how to use reduce javascript reduce on array of objects object of arrays in reduce return object reduce javascript javascript reduce array of objects one of array create an object array from array reduce javascript array reduce use reduce to return object from an array js reduce with array of objects using reduce to an array of objects reduce array of objects totoa using reduce in array objects with objects reduce array of object js reduce array of objects es6 array reduce reduce object into array reduce array of objects in js reduce fields of objects in array object reduce 28 29 in javascript from array in object js reduce reduce array in object in an array javascript use reduce with array of objects reduce an array of objects how to sum a certain portion of the array using reduce javascript array reduce object property find total with reduc in array of object javascript reduce javascript object use reduce to build objkect from array array reduce on array of objects js build objects with reduce array of object reduce to get array of values how to reduce an object javascript javascript reduce array to object 3d 3e es6 reduce object array js reduce create object from array generate array of objects javascript reduce reduce an array of objects to an array using reduce with an array of objects reduce array of objects sum get object value in reduce a from array of object reduce in react how to convert an array to object using javascript using reduce when you add how to decrese value in array of objects javascript array reduce example reduce array of objects sum javascript javascript reduce example return vector array of object reduce javascript reduce return object property from array math reduce method with math javascript javascript reduce to create array of objects js set reduce reduce array of objects es6 reduce object to array javascript reduce array of objects javascript creating array of objects usinng reduce js