Questions tagged [mutation]

Mutation is a genetic mechanism aimed at preserving genetic variation as populations evolve from one generation to another. When working with the javascript DOM, consider using [mutation-observers]. For Java applications involving genetic modifications, opt for [mutators]. And for general object mutability concerns, look into [mutability].

What is the best way to transfer variables when executing mutations in GraphQL Playground?

I am currently working with the Apollo Express Server version 2.0 and I am attempting to run a mutation in the GraphQL playground. Below is the mutation along with a screenshot of a variable: https://i.stack.imgur.com/rGGfu.png https://i.stack.imgur.com/V ...

Mastering the art of capturing errors in route handlers within a Next.js project using react-query

I'm currently working on a small project where I need to verify if an email has already been registered before the user signs up, and if it is, display an error message. When a user is added successfully, everything works smoothly. However, if I try t ...

next.js axios react-query mutation tanstackreact-query

Capturing the returned value of a mutation in another mutation in Vuex

Having trouble accessing a getter from an action, and receiving the error message: getters.isCardLiked is not a function store/index.js export const getters = { isCardLiked(state, id) { const found = state.likedCards.find(likedCard => liked ...

vue.js nuxt.js vuex mutation

Display a Material UI SnackBar when an error occurs in the Mutation

I am currently using the Snack bar feature from the Materia-UI page, specifically the Customized SnackBars example. const variantIcon = { success: CheckCircleIcon, warning: WarningIcon, error: ErrorIcon, info: InfoIcon, }; const styles1 = theme = ...

reactjs material-ui apollo mutation snackbar

Determining loop behavior when altering size of iterable in for loop - what is the process?

When it comes to for loops, the Python documentation mentions them in two different sections. Despite trying to locate the source code for the for loops in cpython, I came up empty-handed. The question that arises is related to my assumption about for loo ...

python mutation

Managing State Changes with Redux

Reducers in Redux are primarily designed to be pure functions that take the previous state and an action as arguments, and return a new state object without mutating the previous state. However, it is still possible for developers to directly mutate the st ...

javascript redux reducers mutation

Utilizing Local Storage in Vuex Store with Vue.js

I have been working with localStorage for storing and retrieving items in my JavaScript code housed within a .vue file. However, I am now looking to find a way to transfer this stored data into my Vuex store, specifically within the mutations section locat ...

javascript vue.js local-storage vuex mutation

Storing various property values in Vuex stateorManaging multiple property

Here is a demo link that I would like to share: https://codepen.io/Albvadi/pen/abdVZxO In the payload, I am trying to pass the title and class but only the class is being recognized. When I attempt to change the @click event to pass an object, the JavaSc ...

vue.js vuex payload mutation

Fetching data in a sequential manner within a Server Component to manipulate a consistent data set in Next.js

Recently diving into the world of next.js (utilizing v13 with App Router), I find myself in search of guidance regarding a particular challenge I've been wrestling with. My objective is to dynamically render data on a page and incrementally update it ...

next.js websocket streaming server-side-rendering mutation

Does modifying a variable during a recursive call count as mutation?

I want to calculate the sum of a list without using mutation. def noMutSum(lst, pointer=0, result=0): if pointer == len(lst): return result newResult = result + lst[pointer] return noMutSum(lst, pointer+1, newResult) Is changing the ...

python recursion sum mutable mutation

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