Issue
let myArr=[{
"name": "",
"columns": [
{
"data": "test1",
"type": "",
},
undefined,
{
"data": "test1",
"type": "",
}
],
"info": "value",
}]
Above array of object having undefined or null values, I have to remove the undefined values.
Solution
This can be done by combining Array.map(), Object.keys(), Array.reduce(), Array.isArray() and Array.filter() (the core piece) as shown in the runnable code below:
let myArr=[{
"name": "",
"columns": [
{
"data": "test1",
"type": "",
},
undefined,
{
"data": "test1",
"type": "",
}
],
"info": "value",
}]
myArr = myArr.map(o => Object.keys(o).reduce((acc, key) => {
let value = o[key];
if (Array.isArray(value)) {
value = value.filter(o2 => o2);
}
acc[key] = value;
return acc;
}, {}));
console.log(myArr);