_.compact

node v6.15.1
version: 2.0.0
endpointsharetweet
const _ = require('lodash'); // compact function function compact(array){ let resIndex = 0; const result = []; if(array == null){ return result; } for(const value of array){ if(value){ result[resIndex++] = value; } } return result; }
let test = [0, 1, '', 2, false, 3, null, 4, undefined, 5, NaN, 6];
compact(test)
_.compact(test)
/* 使用while进行数组的循环 */ function compact_use_while(array) { // 判断array是否为空 if(array == null) { return []; } let result = []; let index = 0; let resIndex = 0; let value; const length = array.length; while(index < length) { value = array[index]; if(value) { result[resIndex++] = value; } index++; } return result; }
compact_use_while(test)
/* 使用数组的map方法 */ function compact_use_map(array) { // 判断array是否为空 if(array == null) { return []; } let result = []; array.map((value) => { if(value) { result.push(value); } }); return result; }
compact_use_map(test)
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