[ideas] Get value as number, date & boolean

[jimmywarting]

just considered that input has things like input.valueAsNumber and input.valueAsDate
and i thought to my self, hmm why don't URLSearchParams have something like that?

URLSearchParams.prototype.get only return strings.
what would you think if URLSearchParams was extended to support getAsNumber and more?

new URLSearchParams('debug').getAsBoolean('debug') // true (just being absent means true)
new URLSearchParams('debug=1').getAsBoolean('debug') // true
new URLSearchParams('debug=true').getAsBoolean('debug') // true
new URLSearchParams('debug=somethingelse').getAsBoolean('debug') // ???
new URLSearchParams('debug=0').getAsBoolean('debug') // false
new URLSearchParams('debug=false').getAsBoolean('debug') // false
new URLSearchParams('').getAsBoolean('debug') // false

new URLSearchParams('limit=10').getAsNumber('limit') // 10
new URLSearchParams('limit').getAsNumber('limit') // 0 or NaN
new URLSearchParams('limit=1e2').getAsNumber('limit') // 100
new URLSearchParams('').getAsNumber('limit') // 0 or NaN
new URLSearchParams('limit=0b11').getAsNumber('limit') // 3
new URLSearchParams('limit=abc').getAsNumber('limit') // NaN
// Maybe also want to get it as BigInt too?
// What about using parseInt and parseFloat?

new URLSearchParams('created=2022-03-20').getAsDate('created') // new Date('2022-03-20')
// it would try first to get it as a number and if it's NaN then it use the value as a string to the constructor 
new URLSearchParams('created=0').getAsDate('created') // new Date(0) 

[annevk]

I'm going to duplicate this into #732 (comment). I think in principle there is something here, but I would want to see more evidence of widespread support for typed values before going there.