Okay i can't explain what i'm trying to do . but i can explain whit code.
i have this array :
var array = [{name:"John",lastname:"Doe"},{name:"Alex",lastname:"Bill"},{name:"John",lastname:"Doe"}]
the array contains 2 elements duplicated , I want a function that shows me only once an element duplicate
when you apply the function this will be the result of the array
var array = [{name:"John",lastname:"Doe"},{name:"Alex",lastname:"Bill"}]
You can achieve it with javascript filter function in old fashioned way.
var array = [{name:"John",lastname:"Doe"},{name:"Alex",lastname:"Bill"},{name:"John",lastname:"Doe"}]
var names = [];
array = array.filter(function (person) {
var fn = person.name + '-' + person.lastname;
if (names.indexOf(fn) !== -1) {
return false;
}
else {
names.push(fn);
return true;
}
});
console.log(array);
// [{"name":"John","lastname":"Doe"},{"name":"Alex","lastname":"Bill"}]
the very simple way is use the underscore
var array = [{name:"John",lastname:"Doe"},{name:"Alex",lastname:"Bill"},{name:"John",lastname:"Doe"}]
array = _.uniq(array , false, function(p) {
return p.name;
});
use the unique to achive
you use lodash library which gives you many array/object & string functions.
var array = [{name:"John",lastname:"Doe"},{name:"Alex",lastname:"Bill"},{name:"John",lastname:"Doe"}]
_.uniqWith(array, _.isEqual);//[{name:"John",lastname:"Doe"},{name:"Alex",lastname:"Bill"}]
The above code will check deep equality of each object and create a unique array.
Docs : lodash uniqWith
