DEV Community: Weijuer

# Day 4 | How to resolve it?

Weijuer — Thu, 17 Nov 2022 08:34:29 +0000

The problem

How can I ensure the condition returns true and print 1.

var a = ?;
if(a == 1 && a == 2 && a == 3){
  console.log(1); // 1
}

# Day 3 | How to resolve it?

Weijuer — Tue, 08 Nov 2022 09:23:13 +0000

The problem:
Write a function called mostFrequentWords which get the ten most frequent word from a string?

const paragraph = `I love teaching. If you do not love teaching what else can you love. I love Python if you do not love something which can give you all the capabilities to develop an application what else can you love.`

console.log(mostFrequentWords(paragraph, 3))

and the res should be:

[
{word:'love', count:6},
{word:'you', count:5},
{word:'can', count:3},
]

# Day 2 | How to resolve it?

Weijuer — Fri, 29 Jul 2022 10:49:56 +0000

The problem

let deps = [
    {id: 1, name: 'dep1', pid: 0},
    {id: 2, name: 'dep2', pid: 1},
    {id: 3, name: 'dep3', pid: 1},
    {id: 4, name: 'dep4', pid: 3},
    {id: 5, name: 'dep5', pid: 4},
];

let res = formatDeps(deps);

and the res should be:

[
    {
        "id": 1,
        "name": "dep1",
        "pid": 0,
        "children": [
            {
                "id": 2,
                "name": "dep2",
                "pid": 1,
                "children": []
            },
            {
                "id": 3,
                "name": "dep3",
                "pid": 1,
                "children": [
                    // etc,,,
                ]
            }
        ]
    }
]

# Day 1 | How to resolve it?

Weijuer — Mon, 11 Jul 2022 07:27:08 +0000

The Problem

var greeting = 'My name is ${name}, age ${age}, I am a ${job.jobLevel} ${job.jobName}.';
var employee = {
  name: 'XiaoMing',
  age: 11,
  job: {
    jobName: 'designer',
    jobLevel: 'senior'
  }
}

var result = greeting.render(employee);
console.log(result); // My name is XiaoMing, age 11, I am a senior designer.

The solution

This is my solution:

// my solution
String.prototype.render = function (options) {
  return this.replace(/(?:\$\{)([\.\w]+)(?:\})/g, (match, $1) => {
    if ($1.includes('.')) {
      var p = $1.split('.');
      return p.reduce((p, n) => p[n], options);
    }
    return options[$1];
  })
}

And the other one:

String.prototype.render = function (options) {
    with(options) {
        return eval('`' + this + '`')
    }
}

Tips:

This is my first article, so, be kind with me.
If you see some improvement that can be made, please, let me know in the comments.
If you liked this article, please, motivate-me in the comments.

Thank you for reading ❤️ !