I’m trying to understand the “theory” besides the auto loop over

std::map

elements in C++.
I have a std::map with a std::string as KEY and a vector as VALUE. I can access its elements with:

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This question already has an answer here:

• Running a shell script using ProcessBuilder
  
  3 answers
  

I want to execute a shell script(in linux environment) from a java program and my code snippet is like below :

try {
            ProcessBuilder pb=new ProcessBuilder("/bin/bash","/home/user/run.sh");
            Process p;
            p = pb.start();
            p.waitFor()
            System.out.println("Executed Shell Script");

        } catch (IOException e) {
            e.printStackTrace();
        }

But when I execute this java program the program runs and prints the executed statement but it is not executing the shell script and not throwing any errors .I am not sure why is this happening. Any help is appreciated.

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I’m trying to get the category_id of a product by checking whether the category_name is found in the product_name.

Take this array

$women_apparel = array('Tank Top', 'T-Shirt');

Now those 2 product_names :

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In router/user.js for routing:

router.post('/register', auth.optional, (req, res, next) => {
  const {
    body: { user }
  } = req

  // validation code skipped for brevity

  const finalUser = new User(user)
  finalUser.setPassword(user.password)

  // to save the user in Mongo DB
  return finalUser.save().then(() => res.json({ user: finalUser.toAuthJSON() }))
})

Post request sent with a body of:

{
    "user":{
        "email":"leon@idiot.com",
        "password": "123abc"
    }
}

In model/User.js for database schema:

const UserSchema = new Schema({ email: String, hash: String, salt: String }) // Please note: this is a regular/normal function definition UserSchema.methods.setPassword = function (password) { // this references the UserSchema created this.salt = crypto.randomBytes(16).toString('hex') console.log(`salt: ${this.salt}`) this.hash = crypto .pbkdf2Sync(password, this.salt, 10000, 512, 'sha512') .toString('hex') console.log(`hash: ${this.hash}`) }

Everything works fine now. The log output as:

salt: e7e3151de63fc8a90e3621de4db0f72e
hash: 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
3

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I’m trying to wrap my head around why the .pbxproj file changes as soon as I open Xcode.

Anyone have any resources on understanding .pbxproj files?