在javascript中按字符串长度过滤数组

Question

我是javascript的初学者

我有一个包含

的数组

array_1 = ["the","quick","brown","fox","jumped","over","the","lazy","dog"]

我想要另一个阵列但只有长度为＆gt的单词; 3

array_cleaned = ["quick","brown","jumped","lazy"]

目前的实施方式：

＆＃13;

＆＃13;

array_1 = ["the","quick","brown","fox","jumped","over","the","lazy","dog"]

array_clean = [];
for(var i=0; i<array_1.length; i++){
    if(array_1[i].length > 3) 
        array_clean.push(array_1[i]);
}

document.write(array_clean)

＆＃13;

＆＃13;

＆＃13;

但我正在寻找一种方法来实际过滤它。有什么想法吗？

Answer 1

您可以使用filter方法：

＆＃13;

＆＃13;

var array_1 = ["the","quick","brown","fox","jumped","over","the","lazy","dog"];
var array_cleaned = array_1.filter( function( element ) {
  return element.length > 3;
});
console.log(array_cleaned); //["quick", "brown", "jumped", "over", "lazy"]

＆＃13;

＆＃13;

＆＃13;

Answer 2

你可以过滤它

var array_cleaned = array_1.filter(function(x) {
    return x.length > 3;
});

Answer 3

如果您不想使用过滤功能，我认为这很好用。

arrayClean = [];
for(int i = 0; i<array1.length; i++) {
     if(array1[i].length < 3) {
          arrayClean[i] = array[i];
     }
}