Javascript equivalent of Ruby to_i

Question

I need to reproduce the following Ruby code in Javascript but I can't find an equivalent for to_i.

beginning_of_last_full_hour = (Time.now.to_s.split(/:\d{2}/)[0] + ":00:00").to_time.to_i - 3600

Any help would be appreciated. I am trying to get the beginning of the last full hour. Thanks

• user229044: to_i isn't really the important part. You need to convert a time object to a unix timestamp.

Answer 1

Javascript equivalent of Ruby to_i

parseInt().

Follow this for more details: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt

Converting following code from Ruby to JavaScript:

(Time.now.to_s.split(/:\d{2}/)[0] + ":00:00").to_time.to_i
# => 1426788000
# Time.now # => 2015年03月19日 18:45:22 +0530

JS equivalent:

d = new Date();
new Date( d.toString().split(/:\d{2}/)[0] + ":00:00").getTime();
# 1426788000

• Max: w3schools is frowned upon in these parts. You should change the link to developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
• shivam: sure @Max will do that :)
• Kelvin: thanks! still needed to divide 1000 like the next poster said for them to be the same

Answer 2

Seems like you want to take unix timestamp. In this case you should convert your Date object to it use:

date_object / 1000

or

date_object.getTime() / 1000

You should divide by 1000 because to_i for Ruby Time object return unix timestamp in seconds but getTime() return it in milliseconds.