lets say i have an array of objects
let arr = [
{
name: "john",
age: 22
},
{
name: "george",
age: 55
}
];
and an object
let obj = {
name: "bill",
age: 55
}
and i want to search all arr objects to find anyone with the same age as obj.age and return a boolean depending whether it includes a same property or not.
i can obviously do :
let find = arr.filter(i => i.age === obj.age);
let bool = find.length > 0 && true;
but is there a way to call a method (lodash,plain js or whatever) to just get this by design like method(arr,obj.age) //returns true ?
let arr = [
{
name: "john",
age: 22
},
{
name: "george",
age: 55
}
];
let obj = {
name: "bill",
age: 55
}
let find = arr.filter(i => i.age === obj.age);
let bool = find.length > 0 && true;
console.log(bool)You can use some. So basically it will return a boolean value if any of the object property in array matches the required value
let arr = [{
name: "john",
age: 22
},
{
name: "george",
age: 55
}
];
let obj = {
name: "bill",
age: 55
}
const val = arr.some(item => item.age === obj.age);
console.log(val)we can do it in two ways. we can use the some function and get the boolean directly or by find function, we can convert it to a boolean using !! operator.
let arr = [{
name: "john",
age: 22
},
{
name: "george",
age: 55
}
];
let obj = {
name: "bill",
age: 55
}
const val1 = arr.some(item => item.age === obj.age);
console.log(val1)
const val2 = !!arr.find(item => item.age === obj.age);
console.log(val2)