How to extract an object from an array?

-2

I have this code, where a username is required from a fake db:

const MY_FAKE_DB = require('./my_db.js')  



const username = 'jdoe2'; 

const user = MY_FAKE_DB.users[username]; 

console.log(user.name, user.passwordHash)

And the "dataBase" (my_db.js) is the next one:

    const users =

{

    jdoe2: [{

        username: "jdoe2",

        name: "Jhoe",

        passwordHash: "1234"

    }],



    lmart: [{

        username: "lmart",

        name: "Luis",

        passwordHash: "2345"

    }]

}

I don´t know how to get from users the user whose username is jdoe2.

Thanks for the help

edited Nov 19 '18 at 16:29

Federico klez Culloca

15.6k134275

asked Nov 19 '18 at 16:26

MrLuigifog

"I don´t know how to get from users the user whose username is jdoe2" By writing code, that's how
– George Jempty
Nov 19 '18 at 16:30

add a comment |

-2

I have this code, where a username is required from a fake db:

const MY_FAKE_DB = require('./my_db.js')  



const username = 'jdoe2'; 

const user = MY_FAKE_DB.users[username]; 

console.log(user.name, user.passwordHash)

And the "dataBase" (my_db.js) is the next one:

    const users =

{

    jdoe2: [{

        username: "jdoe2",

        name: "Jhoe",

        passwordHash: "1234"

    }],



    lmart: [{

        username: "lmart",

        name: "Luis",

        passwordHash: "2345"

    }]

}

I don´t know how to get from users the user whose username is jdoe2.

Thanks for the help

edited Nov 19 '18 at 16:29

Federico klez Culloca

15.6k134275

asked Nov 19 '18 at 16:26

MrLuigifog

"I don´t know how to get from users the user whose username is jdoe2" By writing code, that's how
– George Jempty
Nov 19 '18 at 16:30

add a comment |

-2

I have this code, where a username is required from a fake db:

const MY_FAKE_DB = require('./my_db.js')  



const username = 'jdoe2'; 

const user = MY_FAKE_DB.users[username]; 

console.log(user.name, user.passwordHash)

And the "dataBase" (my_db.js) is the next one:

    const users =

{

    jdoe2: [{

        username: "jdoe2",

        name: "Jhoe",

        passwordHash: "1234"

    }],



    lmart: [{

        username: "lmart",

        name: "Luis",

        passwordHash: "2345"

    }]

}

I don´t know how to get from users the user whose username is jdoe2.

Thanks for the help

edited Nov 19 '18 at 16:29

Federico klez Culloca

15.6k134275

asked Nov 19 '18 at 16:26

MrLuigifog

I have this code, where a username is required from a fake db:

const MY_FAKE_DB = require('./my_db.js')  



const username = 'jdoe2'; 

const user = MY_FAKE_DB.users[username]; 

console.log(user.name, user.passwordHash)

And the "dataBase" (my_db.js) is the next one:

    const users =

{

    jdoe2: [{

        username: "jdoe2",

        name: "Jhoe",

        passwordHash: "1234"

    }],



    lmart: [{

        username: "lmart",

        name: "Luis",

        passwordHash: "2345"

    }]

}

I don´t know how to get from users the user whose username is jdoe2.

Thanks for the help

javascript arrays node.js extract

edited Nov 19 '18 at 16:29

Federico klez Culloca

15.6k134275

asked Nov 19 '18 at 16:26

MrLuigifog

edited Nov 19 '18 at 16:29

Federico klez Culloca

15.6k134275

asked Nov 19 '18 at 16:26

MrLuigifog

edited Nov 19 '18 at 16:29

Federico klez Culloca

15.6k134275

edited Nov 19 '18 at 16:29

Federico klez Culloca

15.6k134275

edited Nov 19 '18 at 16:29

Federico klez Culloca

15.6k134275

asked Nov 19 '18 at 16:26

MrLuigifog

asked Nov 19 '18 at 16:26

MrLuigifog

asked Nov 19 '18 at 16:26

MrLuigifog

"I don´t know how to get from users the user whose username is jdoe2" By writing code, that's how
– George Jempty
Nov 19 '18 at 16:30

add a comment |

"I don´t know how to get from users the user whose username is jdoe2" By writing code, that's how
– George Jempty
Nov 19 '18 at 16:30

"I don´t know how to get from users the user whose username is jdoe2" By writing code, that's how
– George Jempty
Nov 19 '18 at 16:30

add a comment |

1 Answer
1

active

oldest

votes

You have a few things that are causing problems here.

First to use require, you should export your object from the fake db. Something like:

// my_db.js

const users = {

    jdoe2: {

        username: "jdoe2",

        name: "Jhoe",

        passwordHash: "1234"

    },



    lmart: {

        username: "lmart",

        name: "Luis",

        passwordHash: "2345"

    }

}



module.exports = users // export users

Notice I changed the DB. You defined each user as an array, but that doesn' make sense and you weren't accessing them as arrays. Here each user is a single object.

Now to use it you can require it and it should work as expected:

const users = require('./my_db.js')  // the exported users becomes the `users`



const username = 'jdoe2'; 

const user = users[username]; 

console.log(user.name, user.passwordHash)

answered Nov 19 '18 at 17:01

Mark Meyer

36.6k33059

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

You have a few things that are causing problems here.

First to use require, you should export your object from the fake db. Something like:

// my_db.js

const users = {

    jdoe2: {

        username: "jdoe2",

        name: "Jhoe",

        passwordHash: "1234"

    },



    lmart: {

        username: "lmart",

        name: "Luis",

        passwordHash: "2345"

    }

}



module.exports = users // export users

Notice I changed the DB. You defined each user as an array, but that doesn' make sense and you weren't accessing them as arrays. Here each user is a single object.

Now to use it you can require it and it should work as expected:

const users = require('./my_db.js')  // the exported users becomes the `users`



const username = 'jdoe2'; 

const user = users[username]; 

console.log(user.name, user.passwordHash)

answered Nov 19 '18 at 17:01

Mark Meyer

36.6k33059

add a comment |

You have a few things that are causing problems here.

First to use require, you should export your object from the fake db. Something like:

// my_db.js

const users = {

    jdoe2: {

        username: "jdoe2",

        name: "Jhoe",

        passwordHash: "1234"

    },



    lmart: {

        username: "lmart",

        name: "Luis",

        passwordHash: "2345"

    }

}



module.exports = users // export users

Notice I changed the DB. You defined each user as an array, but that doesn' make sense and you weren't accessing them as arrays. Here each user is a single object.

Now to use it you can require it and it should work as expected:

const users = require('./my_db.js')  // the exported users becomes the `users`



const username = 'jdoe2'; 

const user = users[username]; 

console.log(user.name, user.passwordHash)

answered Nov 19 '18 at 17:01

Mark Meyer

36.6k33059

add a comment |

You have a few things that are causing problems here.

First to use require, you should export your object from the fake db. Something like:

// my_db.js

const users = {

    jdoe2: {

        username: "jdoe2",

        name: "Jhoe",

        passwordHash: "1234"

    },



    lmart: {

        username: "lmart",

        name: "Luis",

        passwordHash: "2345"

    }

}



module.exports = users // export users

Notice I changed the DB. You defined each user as an array, but that doesn' make sense and you weren't accessing them as arrays. Here each user is a single object.

Now to use it you can require it and it should work as expected:

const users = require('./my_db.js')  // the exported users becomes the `users`



const username = 'jdoe2'; 

const user = users[username]; 

console.log(user.name, user.passwordHash)

answered Nov 19 '18 at 17:01

Mark Meyer

36.6k33059

You have a few things that are causing problems here.

First to use require, you should export your object from the fake db. Something like:

// my_db.js

const users = {

    jdoe2: {

        username: "jdoe2",

        name: "Jhoe",

        passwordHash: "1234"

    },



    lmart: {

        username: "lmart",

        name: "Luis",

        passwordHash: "2345"

    }

}



module.exports = users // export users

Notice I changed the DB. You defined each user as an array, but that doesn' make sense and you weren't accessing them as arrays. Here each user is a single object.

Now to use it you can require it and it should work as expected:

const users = require('./my_db.js')  // the exported users becomes the `users`



const username = 'jdoe2'; 

const user = users[username]; 

console.log(user.name, user.passwordHash)

answered Nov 19 '18 at 17:01

Mark Meyer

36.6k33059

answered Nov 19 '18 at 17:01

Mark Meyer

36.6k33059

answered Nov 19 '18 at 17:01

Mark Meyer

36.6k33059

answered Nov 19 '18 at 17:01

Mark Meyer

36.6k33059

add a comment |

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