data1 is: ${ JSON.stringify(data1) }
data2 is: ${ JSON.stringify(data2) }
data3 is: ${ JSON.stringify(data3) }
map is: ${ JSON.stringify([...map]) }
map has 3: ${ map.has(3) }
set is: ${ JSON.stringify([...set]) }
set has 4: ${ set.has(4) }
weakMap has data1: ${ weakMap.has(data1) }
weakSet has data1: ${ weakSet.has(data1) }
regExp.test(data1.string) is ${ regExp.test(data1.string) }
$router is: ${ JSON.stringify($router) }
json is: ${ JSON.stringify(json) }
data1 is: ${ JSON.stringify(data1) }
data4 is: ${ JSON.stringify(data4) }