1.4 KiB
1.4 KiB
id | title | challengeType | videoUrl | localeTitle |
---|---|---|---|---|
587d8255367417b2b2512c72 | Use .has and .size on an ES6 Set | 1 | 在ES6集上使用.has和.size |
Description
var set = new Set([1,2,3]);
.has方法将检查该值是否包含在集合中。 var hasTwo = set.has(2);
.size方法将返回一个表示Set var howBig = set.size;
大小的整数var howBig = set.size;
Instructions
Tests
tests:
- text: '<code>checkSet([4, 5, 6], 3)</code>应该返回[false,3]'
testString: 'assert(function(){var test = checkSet([4,5,6], 3); test === [ false, 3 ]}, "<code>checkSet([4, 5, 6], 3)</code> should return [ false, 3 ]");'
Challenge Seed
function checkSet(arrToBeSet, checkValue){
// change code below this line
// change code above this line
}
checkSet([ 1, 2, 3], 2); // Should return [ true, 3 ]
Solution
// solution required