英文:
Filter Out Element from Nested Array
问题
let inputArray = [["1.81","2.24"],["5.62","6.26"],false,["2.31","1.64"],false,false];
let outputArray = inputArray.filter(item => item !== false);
我有一个嵌套的输入数组，其中包含小数组和false语句，如控制台中所示。如何从输入数组中删除false语句？我尝试使用for循环遍历所有6个元素，检查每个元素是否为(if !==false)，然后将其push到一个名为output array的新数组中，但我无法使其工作。请问如何解决这个问题？非常感谢你的帮助！
英文:
let input array=[["1.81","2.24"],["5.62","6.26"],false,["2.31","1.64"],false,false]
let output array=[["1.81","2.24"],["5.62","6.26"],["2.31","1.64"]];
I have a nested input array which contains smaller arrays and false statement as shown in the console. How do I remove the false statement from the input array? I have tried using for loop to loop through all the 6 elements to check each element with a (if !==false), then push into a new array called the output array but I could not get it to work? May I know how to solve this? Your help will be very much appreciated 
答案1
得分: 1
Directly use Array#filter:
let input = [["1.81", "2.24"], ["5.62", "6.26"], false, ["2.31", "1.64"], false, false];
let res = input.filter(Boolean);
console.log(res);
英文:
Directly use Array#filter:
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-js -->
let input=[["1.81","2.24"],["5.62","6.26"],false,["2.31","1.64"],false,false]
let res = input.filter(Boolean);
console.log(res);
<!-- end snippet -->
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