CODEWITHSUNDEEP
javascriptjson
user494461
user494461

Reputation:

treat json objects value as integer

I have a json file which I am accessing through JS

latitude =data8.weblandmarks8[j].latitude + latitude;

should add all the latitudes so that I could average them later instead it just concatenates them How should i achieve what I want to

Json entry

"latitude": "28.14331",

Upvotes: 10

Views: 45283

Answers (3)

peterp
peterp

Reputation: 3165

Convert it to a number: You'll use the parseFloat() or parseInt() methods.

parseFloat('28.14331') // 28.14331
parseInt('28.14331', 10) // 28

Upvotes: 4

KooiInc
KooiInc

Reputation: 122906

Aside from using parseFloat you could convert to Number, it's slightly faster and usable for both integers and floats1: 

latitude = Number(data8.weblandmarks8[j].latitude) + latitude;

1 another advantage for integers is that you don't need to supply a radix. Number('09') returns 9, whereas parseInt('09') (i.e. parseInt without a radix) returns 0 (that's because parseInt defaults to an octal - radix 8).

Upvotes: 18

Ibu
Ibu

Reputation: 43810

you can use the parseFloat function to turn the string into a number

latitude = parseFloat(data8.weblandmarks8[j].latitude) + latitude;

Upvotes: 0

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