angular - How to Store and Retrieve Data in Multidimensional Array in Angular4 / Ionic 3 -


i trying store values in angular 4 (ionic 3) , fetch row array based on key. key passed function , function retrieves values compute values. class property below. pretty sure formatted right.

let chemicals = [{     "trichlor" : [{         "ozmul": 6854.95,          "volume": "x"     }],     "dichlor": [{         "ozmul": 4149.03,          "volume": 0.9351     }],     "cal-hypo-48": [{         "ozmul": 3565.44,         "volume": 0.9352     }],     "cal-hypo-53": [{         "ozmul": 3936.84,         "volume": 0.9352     }],     "cal-hypo-65": [{         "ozmul": 4828.12,         "volume": 0.9352     }],     "cal-hypo-73": [{         "ozmul": 5422.41,         "volume": 0.9352     }],     "lithium-hypo": [{         "ozmul": 2637.5,         "volume": 0.978     }],     "chlorine-gas": [{         "ozmul": 7489.4,         "volume": "x"     }] }];

so basically, need grab value passed function (let's use trichlor example). need able use value fetch ozmul , volume values associated trichlor. proper way accomplish within provider? below example of code function uses values:

chemical = "trichlor"; // passed function  if (chemicals.chemical.ozmul == 'x') {     let tempvaluetwoweight = 'unknown'; } else {     let tempvaluetwovolume = (tempvaluetwo * chemicals.chemical.volume) }

some thing suit , not need hardcode paths

test(val:string){   this.chemicals.foreach(data => {     let value = data[val].find(data => data.volume === 'x');     console.log(value);   }); }

have method pass val want search , data.volume parameter can made dynamic , check


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