i wanted represent first two letters of phone number,i want to get phone numbers first two characters. what i have tried is below Get first two of attribute and find target based on it.
let object = [
"key": {
login-attempt: 1
name: "ADMIN"
phone: "0777123456"
}]
what i have tried is below
object[0].substr(0,2);
let test = {
key: {
"login-attempt": 1,
name: "ADMIN",
phone: "0777123456",
}
};
console.log(test.key.phone.substr(0,2)); You're more likely to have an object like this:
let object = {
login-attempt: 1
name: "ADMIN"
phone: "0777123456"
};
In this case, your code might be:
let prefix = object.phone.substr(0,2);
Or you might have an array of objects:
let object = [
{
login-attempt: 1
name: "ADMIN"
phone: "0777123456"
},
{
login-attempt: 1
name: "CLERK"
phone: "2222222222"
}
];
You can get the 1st two characters of the second element like this:
let prefix = object[1].phone.substr(0,2);
If the element was nested within "key":
let object = {
key: {
login-attempt: 1
name: "ADMIN"
phone: "0777123456"
}
};
let prefix = object.key.phone.substr(0,2);
And so on...