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Contents
require 'spec_helper'
describe 'Iterable props defined by Opal on core JS objects' do
%x{
function iterableKeysOf(obj) {
var result = [];
for (var key in obj) {
result.push(key);
}
return result;
}
}
it 'is empty for numbers' do
`iterableKeysOf(1)`.should == []
end
it 'is empty for strings' do
`iterableKeysOf('123')`.should == ['0', '1', '2'] # indexes, in JS they are iterable by default
`iterableKeysOf(new String('123'))`.should == ['0', '1', '2'] # indexes, in JS they are iterable by default
end
it 'is empty for plain objects' do
`iterableKeysOf({})`.should == []
end
it 'is empty for boolean' do
`iterableKeysOf(true)`.should == []
`iterableKeysOf(false)`.should == []
end
it 'is empty for regexp' do
`iterableKeysOf(/regexp/)`.should == []
end
it 'is empty for functions' do
`iterableKeysOf(function() {})`.should == []
end
it 'is empty for dates' do
`iterableKeysOf(new Date())`.should == []
end
it 'is empty for errors' do
`iterableKeysOf(new Error('message'))`.should == []
end
it 'is empty for Math' do
`iterableKeysOf(Math)`.should == []
end
end
Version data entries
27 entries across 27 versions & 1 rubygems