update object property based on previous value Object.assign

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty margin-bottom:0;







up vote
0
down vote

favorite












I have one object and its keys value initialized with 0,
Now if I want to increase the value of that key from the previous value than how to do it in an efficient manner with the concept of Immutability



const nameCounter = ALPHA: 0, BETA: 0, CHARLIE: 0, PETER: 0 ;

if(condtionToIncreaeAlphaCountBy5) 
 Object.assign(nameCounter, ALPHA: nameCounter.ALPHA + 5 );



But it seems me very odd to write complete Object name again



What is the efficient solution to rewrite this?




ecmascript-6




share|improve this question



















  • If you know that alpha value is going to change, why do you use const instead of let ?
    – LMokrane
    May 31 at 5:26










  • I use const for nameCounter not for alpha. this is working fine. looking for to reduce the Object.assign() part
    – pro.mean
    May 31 at 7:16

















up vote
0
down vote

favorite












I have one object and its keys value initialized with 0,
Now if I want to increase the value of that key from the previous value than how to do it in an efficient manner with the concept of Immutability



const nameCounter = ALPHA: 0, BETA: 0, CHARLIE: 0, PETER: 0 ;

if(condtionToIncreaeAlphaCountBy5) 
 Object.assign(nameCounter, ALPHA: nameCounter.ALPHA + 5 );



But it seems me very odd to write complete Object name again



What is the efficient solution to rewrite this?




ecmascript-6




share|improve this question



















  • If you know that alpha value is going to change, why do you use const instead of let ?
    – LMokrane
    May 31 at 5:26










  • I use const for nameCounter not for alpha. this is working fine. looking for to reduce the Object.assign() part
    – pro.mean
    May 31 at 7:16













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have one object and its keys value initialized with 0,
Now if I want to increase the value of that key from the previous value than how to do it in an efficient manner with the concept of Immutability



const nameCounter = ALPHA: 0, BETA: 0, CHARLIE: 0, PETER: 0 ;

if(condtionToIncreaeAlphaCountBy5) 
 Object.assign(nameCounter, ALPHA: nameCounter.ALPHA + 5 );



But it seems me very odd to write complete Object name again



What is the efficient solution to rewrite this?




ecmascript-6




share|improve this question











I have one object and its keys value initialized with 0,
Now if I want to increase the value of that key from the previous value than how to do it in an efficient manner with the concept of Immutability



const nameCounter = ALPHA: 0, BETA: 0, CHARLIE: 0, PETER: 0 ;

if(condtionToIncreaeAlphaCountBy5) 
 Object.assign(nameCounter, ALPHA: nameCounter.ALPHA + 5 );



But it seems me very odd to write complete Object name again



What is the efficient solution to rewrite this?





ecmascript-6





share|improve this question










share|improve this question




share|improve this question









asked May 22 at 9:06









pro.mean

1086




1086











  • If you know that alpha value is going to change, why do you use const instead of let ?
    – LMokrane
    May 31 at 5:26










  • I use const for nameCounter not for alpha. this is working fine. looking for to reduce the Object.assign() part
    – pro.mean
    May 31 at 7:16

















  • If you know that alpha value is going to change, why do you use const instead of let ?
    – LMokrane
    May 31 at 5:26










  • I use const for nameCounter not for alpha. this is working fine. looking for to reduce the Object.assign() part
    – pro.mean
    May 31 at 7:16
















If you know that alpha value is going to change, why do you use const instead of let ?
– LMokrane
May 31 at 5:26




If you know that alpha value is going to change, why do you use const instead of let ?
– LMokrane
May 31 at 5:26












I use const for nameCounter not for alpha. this is working fine. looking for to reduce the Object.assign() part
– pro.mean
May 31 at 7:16





I use const for nameCounter not for alpha. this is working fine. looking for to reduce the Object.assign() part
– pro.mean
May 31 at 7:16
















active

oldest

votes











Your Answer




StackExchange.ifUsing("editor", function ()
return StackExchange.using("mathjaxEditing", function ()
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix)
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["\$", "\$"]]);
);
);
, "mathjax-editing");

StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "196"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: false,
noModals: false,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);








 

draft saved


draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fcodereview.stackexchange.com%2fquestions%2f194931%2fupdate-object-property-based-on-previous-value-object-assign%23new-answer', 'question_page');

);

Post as a guest






















active

oldest

votes













active

oldest

votes









active

oldest

votes






active

oldest

votes










 

draft saved


draft discarded


























 


draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fcodereview.stackexchange.com%2fquestions%2f194931%2fupdate-object-property-based-on-previous-value-object-assign%23new-answer', 'question_page');

);

Post as a guest
































































-

Popular posts from this blog

Read an image with ADNS2610 optical sensor and Arduino Uno

Image
Clash Royale CLAN TAG #URR8PPP .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty margin-bottom:0; up vote 5 down vote favorite Preliminaries I have optical sensor ADNS2610 (see datasheet here). There are a few problems which it can be used to solve, but for now let us focus on getting an image from that sensor. This sensor is kind of a small camera which has 400 cpi (counts per inch) resolution. And the resulting image consists of 324 = 18 x 18 pixels. The following is from the linked datasheet (p.23): So in order to read a frame I should follow the algorithm: Set the LED to forced awake mode Write anything to the Pixel Data register Read 324 times 6-bit unsigned integer from that register So below is my program. Program Object oriented approach and WriteRegister and ReadRegisters functions (slightly modified) are borrowed from this project by zapmaker. Optical sensor is represented by a class: ADNS2610 class #ifndef ADNS2610_H #define ADNS261...
Read more

Read files from a directory using Promises

Image
Clash Royale CLAN TAG #URR8PPP .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty margin-bottom:0; up vote 4 down vote favorite Using javascript functions and the old way of doing things I wrote a piece of code to copy the first file in a directory to a file Test . console.log("Copy First File"); var fs = require('fs'); fs.readdir(".", function(err, files) if (err) console.log(err);process.exit(1); fs.exists(files[0], function(exits) fs.readFile(files[0], function(err, data) if (err) console.log(err);process.exit(1); fs.writeFile('Test', data, function(err) if (err) console.log(err);process.exit(1); console.log("Data Copied"); ); ) ); ); After reading about Promises (and several failed attempts). I managed to convert the above to use Promise and .then() chaining. function getAListOfFiles() return new Promise(function(resolve, reject) fs.readdir(".", function(err, files) if (err)...
Read more

Chat program with C++ and SFML

Image
Clash Royale CLAN TAG #URR8PPP .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty margin-bottom:0; up vote 2 down vote favorite This is my client code: (My server is very similar at the moment but I will upload it below this one just in case somebody wants to run it) #include <SFML/Graphics.hpp> #include <SFML/Network.hpp> #include <thread> int main() sf::RenderWindow main_win(sf::VideoMode(800, 800), "Chatcy!"); main_win.setPosition(sf::Vector2i(sf::VideoMode::getDesktopMode().width/2 -400, sf::VideoMode::getDesktopMode().height/2 -400)); main_win.setVerticalSyncEnabled(true); //chatcy logo sf::Texture chatcy; chatcy.loadFromFile("image_chatcy.png"); sf::Sprite logo; logo.setTexture(chatcy); //200x800 //font sf::Font font; font.loadFromFile("FreeSerif.ttf"); //name sf::String name("Client"); name += ": "; //text input area and background sf::RectangleShape in_backg...
Read more