CODEWITHSUNDEEP
d3.js
user4283143
user4283143

Reputation:

D3 time string convert to date

I'm new to D3.

I have a string stored in a var, below is the var.

var expense = {"name":"jim","amount":34,"date":"11/12/2015"};

and I want to only show the year of the date. 

var parser = d3.timeParse("%Y");
expense.date = parser(expense.date);
console.log(expense);

but I am just getting null for the date. Anyone know how to fix this? I should get the result:

{name: "jim", amount: 34, date: 2015 }

Upvotes: 0

Views: 5968

Answers (1)

calmar
calmar

Reputation: 1959

If you want to use d3 date tools, first you have the parse your string to date format

const tParser = d3.timeParse("%d/%m/%Y")

then use on your string

const date = tParser(expense.date)

then use d3.timeFormat("%Y")

const year = d3.timeFormat("%Y")(date)

Or much simpler just split your string as rioV8 commented

expense.date = +expense.date.split('/')[2]

Thought it could be useful to know how to use d3 time format works, more info

Upvotes: 2

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