GitHub
Twittersome
Return true if at least one item in a list matches a predicate.
list.some( callback [,thisArg] )
Tests each item in list by calling callback on it. If callback returns truthy for some element in
list, some returns true.
import {DefineList} from "can";
const names = new DefineList(["alice","adam","zack","zeffer"]);
const aNames = names.some((name) => {
return name[0] === "a";
});
console.log(aNames); //-> true
Parameters
- callback
{function(item, index, list)}:A function to call with each element of the DefineList. The three parameters that callback gets passed are:
- item (*) - the element at index.
- index (Integer) - the index of the current element of the list.
- list (DefineList) - the DefineList the elements are coming from.
If
callbackreturns a falsy result,somewill evaluate the callback on the next element. Otherwise,somewill returntrue. - thisArg
{Object}:What
thisshould be in thecallback.
Returns
{Boolean}:
false if calling the callback on some element in list returns a falsy value, true otherwise.
list.some( props )
Tests each item in list by comparing its properties to props. If props match for some element in
list, some returns true.
import {DefineList} from "can";
const todos = new DefineList([
{name: "dishes", complete: false},
{name: "lawn", complete: true}
]);
const complete = todos.some({complete: true});
console.log(complete); //-> true
Parameters
- props
{Object}:An object of key-value properties. Each key and value in
propsmust be present on anitemfor theitemto match.
Returns
{Boolean}:
false if every element in list fails to match props, true otherwise