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javascriptlodash

validate the correct types of a collection with lodash

I'm a little bit confused about how to check a collection(object) with the lodash _.some() function.

var x = {prop1: 800, prop2: 800, prop3: 'test'};

_.some(x, i => _.isNaN(i))
//false

_.some(x, _.isNaN)
//false
Solution

  • Now that you want to know if all of the properties are numbers, you can use this:

    !_.some(x, i=> !_.isNumber(i))

    I don't know about the perforamance differences of _.some and _.every but you could of course also use:

    _.every(x, i=> _.isNumber(i))