every()方法 -- 所有都满足条件返回true,否则返回false
var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11];
var result = arr.every(function(value, index) {
return value < 14;
});
console.log(result); //true
some()方法 -- 只要有一项满足条件的就返回true,全不满足,返回false
var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11];
var result = arr.some(function(value, index) {
return value < 2;
});
console.log(result);