Right now I have this structure in JSON
"Types":[
{
"LowCadence":[
{
"Reinforcement":"-1",
"Weight":"100",
"Message":"Pay attention. You're running low cadence. Your cadence is %d steps per minute."
}
]
},
{
"NormalCadence":[
{
"Reinforcement":"0",
"Weight":"100",
"Message":"Great, your cadence is on target. Cadence is %d steps per minute.",
"EnforcementSound":"ding"
}
]
},
{
"HighCadence":[
{
"Reinforcement":"1",
"Weight":"100",
"Message":"Slow down. You're running over your planned cadence. Cadence is %d steps per minute."
}
]
}
]
But I would like it to have this structure
Does anyone know how to write it in JSON?
I believe your JSON would look something like:
As @Balder says in their answer, you can then access use dictionary-style syntax, like:
Types['NormalHR']['Reinforcement']
You could also use property-accessor syntax, like:
Types.NormalHR.Reinforcement
The reason I didn't include the "type" of each item, is that you can easily infer it for building your grid - as follows:
typeof Types.NormalHR.Reinforcement
(this will return"number"
)typeof Types.NormalHR.Message
(this will return"string"
)Similarly, to get the counts - you can count the properties of a specific object. In modern browsers, try:
Object.keys(Types.NormalHR).length
(this will return2
)For older browsers, refer to other methods here: How to efficiently count the number of keys/properties of an object in JavaScript?
Hope this helps!