I have tried splicing my json file using a for loop JSON file:
[
{
"name":"Billy Jean",
"age":"52",
"sex":"F",
},
{
"name":"Bob Semple",
"age":"32",
"sex":"M",
} there are more....
]
What I have tried (i imported it and called it contactList)
for(let i = 0 ; i < contactList.length ; i++){
if(contactlist.age > 40) {
contactList.splice(i, 1);
}
}
if i run the code and check the output nothing changes in my JSON file
You can create a new array using Array.prototype.filter() combined with Destructuring assignment
age property it's of type string and should be compared as number using unary plus (+) operatorCode:
const data = [{
"name": "Billy Jean",
"age": "52",
"sex": "F",
},
{
"name": "Bob Semple",
"age": "32",
"sex": "M",
}
]
const result = data.filter(({ age }) => +age > 40)
console.log(result)