javascript - 通过参数名称获取数组的项

Question

for (...) {
    files.push(files[i]);
    li_out.push({name : fileName, list_files : files});
}

如何按名称获取list_files数组？

var list_files_of_file3 = li_out[name == "file3" (?????)].list_files;

Answer 1

Array#find可以在这种情况下使用。

var list_files_of_file3 = li_out.find(o => o.name === "file3").list_files;

// Variable names changed for DEMO purpose

var files = [];

for (var i = 0; i < 10; i++) {
    files.push({
        name: 'fileName ' + i,
        list_files: 'something ' + i
    });
}

var res = files.find(o => o.name === 'fileName 3').list_files;

console.log(res);