Loop the JSON String using filter function by passing array values, Javascript

Question

[
  {
    "dataType": "BOOLEAN",
    "name": "checkbox_confidential",
    "isCollection": false,
    "flowName": "FlowData",
    "value": true,
    "objectType": null
  },
  {
    "dataType": "BOOLEAN",
    "name": "checkbox_password",
    "isCollection": false,
    "flowName": "FlowData",
    "value": false,
    "objectType": null
  },
  {
    "dataType": "BOOLEAN",
    "name": "checkbox_restriction",
    "isCollection": false,
    "flowName": "FlowData",
    "value": true,
    "objectType": null
  },
  {
    "dataType": "DATEONLY",
    "name": "date_dateReq",
    "isCollection": false,
    "flowName": "FlowData",
    "value": "2022-10-30",
    "objectType": null
  }]

I am getting the above JSON from the flow to LWC. I am capturing the above Json to a variable called outputVariables from event.detail;

let { outputVariables, status } = event.detail;
_searchOutputVariables = ['checkbox_restriction','date_dateReq'];

const result = outputVariables.filter(outvar => outvar.name == "checkbox_restriction");
  if(result != undefined && result.length > 0){
     this.restrictionLocal = result[0].value;
  }

I am trying to get the value by passing each variable like the above. But my lead wants me to create an array and add all the filter text and pass to the filter function. I create an array '_searchOutputVariables'. how to use that array in filter function? please help me to do this?

Thomas Zimmermann · Accepted Answer · 2022-11-16 14:18:37Z

0

It is pretty easy:

const outputVariables = [
  {
    "dataType": "BOOLEAN",
    "name": "checkbox_confidential",
    "isCollection": false,
    "flowName": "FlowData",
    "value": true,
    "objectType": null
  },
  {
    "dataType": "BOOLEAN",
    "name": "checkbox_password",
    "isCollection": false,
    "flowName": "FlowData",
    "value": false,
    "objectType": null
  },
  {
    "dataType": "BOOLEAN",
    "name": "checkbox_restriction",
    "isCollection": false,
    "flowName": "FlowData",
    "value": true,
    "objectType": null
  },
  {
    "dataType": "DATEONLY",
    "name": "date_dateReq",
    "isCollection": false,
    "flowName": "FlowData",
    "value": "2022-10-30",
    "objectType": null
   }
 ];
 
const _searchOutputVariables = ["checkbox_restriction", "date_dateReq"];

const result = outputVariables.filter(node => {
  if (_searchOutputVariables.includes(node.name))
    return node;
});

console.log(result);

answered Nov 16, 2022 at 14:18

Thomas Zimmermann

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2 Comments

Lakshmi Over a year ago

Hi Thomas, thanks a lot for your help. I just started learning Javascript. one more question, How to get only the value by passing array of names?

Thomas Zimmermann Over a year ago

@Lakshmi let result = []; outVar.forEach(o => { if (arrayOfNames.includes(o.name)) result.push(o.value); }); will give u a result array of "values". Happy to help! Consider voting for the answer if you like it :)

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