我想得到array1和array2的类似值的索引,并将其存储到stored_index变量中.
array1 = ["50","51","52","53","54","55","56","57","58","59"]; array2 = ["59","51"];
存储的索引应如下所示.
stored_index = [9,5,1]; // index 9,1 is equal to their indices in array 1
解决方法
Javascript map()可以这样做:
var array1 = ["50","59"]; var array2 = ["59","51"]; var stored_index = array2.map(function(val){ return array1.indexOf(val) }).filter(function(val){ return (val != -1) }); console.log(stored_index)
删除过滤器:
var array1 = ["50","51"]; var stored_index = array2.map(function(val){ return (array1.indexOf(val) != -1) ? array1.indexOf(val) : null; }); console.log(stored_index)//output [9,1]