DOM bilen JavaScript kodynyň ýalňyşlyklaryny gözlemek

Задание 1

Kod her bir abzasyň ahyryna tekst goşmaly:

html<p>1</p>
<p>2</p>
<p>3</p>

javascriptlet elems = document.querySelector('p');
elems.textContent += '!';

Задание 2

Abzasa basylanda onuň bahasy bir birlik artmaly:

html<p>1</p>
<p>2</p>
<p>3</p>

javascriptlet elems = document.querySelectorAll('p');

for (let elem of elems) {
  elem.addEventListener('click', function() {
    this.textContent += Number(1);
  });
}

Задание 3

Düwmä basylanda abzas tekstiniň ýogyn bolmaly:

html<p>text</p>
<button>click</button>

javascriptlet button = document.querySelector('button');
let elem   = document.querySelector('p');

button.addEventListener('click', function() {
  elem.innerHTML = '<b>elem.innerHTML</b>';
});

Задание 4

Düwmä basylanda abzastalardaky sanlaryň jemi çap edilmeli:

html<p>1</p>
<p>2</p>
<p>3</p>

<button>click</button>

javascriptlet button = document.querySelector('button');
let elems  = document.querySelector('p');

button.addEventListener('click', function() {
  let sum = 0;
  
  for (let elem of elems) {
    sum += Number(elems.textContent);
  }
  
  console.log(sum);
});

Задание 5

Abzasa basylanda ona ahyryna berlen tekst goşulmaly:

html<p>1</p>
<p>2</p>
<p>3</p>

javascriptlet elems = document.querySelectorAll('p');

for (let elem of elems) {
  elem.addEventListener('click', () => {
    this.textContent += '!';
  });
}

Задание 6

Düwmä basylanda her bir abzas tekstiniň ýogyn bolmaly:

html<p>text1</p>
<p>text2</p>
<p>text3</p>
<button>click</button>

javascriptlet button = document.querySelector('button');
let elems  = document.querySelectorAll('p');

button.addEventListener('click', function() {
  for (let elem of elems) {
    elem.innerHTML = '<b>+elem.innerHTML+</b>';
  }
});

Задание 7

Düwmä basylanda konsola abzastalardaky sanlaryň jemi çap edilmeli:

html<p>1</p>
<p>2</p>
<p>3</p>

<button>click</button>

javascriptlet button = document.querySelector('button');
let elems  = document.querySelectorAll('p');
let sum = 0;

for (let elem of elems) {
  sum = elem.textContent + 1;
  
  button.addEventListener('click', function() {
    console.log(sum);
  });
}

Задание 8

Inputlara sanlar girizilýär. Düwmä basylanda konsola inputlardaky sanlaryň jemi çap edilmeli:

html<input>
<input>
<input>

<button>click</button>

javascriptlet button = document.querySelector('button');
let elems  = document.querySelectorAll('input');
let sum = 0;

for (let elem of elems) {
  sum += elem.value;
}

button.addEventListener('click', function() {
  console.log(sum);
});

Задание 9

Ilkinji iki inputa sanlar girizilýär. Düwmä basylanda üçünji inputa şol sanlaryň jemi çap edilmeli:

html<input id="inp1">
<input id="inp2">
<input id="inp3">

<button id="btn">click</button>

javascriptlet btn  = document.querySelector('#btn');
let inp1 = document.querySelector('#inp1');
let inp2 = document.querySelector('#inp2');
let inp3 = document.querySelector('#inp3');

btn.addEventListener('click', function() {
  inp3.textContent = inp1.textContent + inp2.textContent;
});

Задание 10

Ilkinji iki inputa sanlar girizilýär. Düwmä basylanda abzasa şol sanlaryň jemi çap edilmeli:

html<input id="inp1">
<input id="inp2">
<p id="res"></p>

<button id="btn">click</button>

javascriptlet btn  = document.querySelector('btn');
let res  = document.querySelector('res');
let inp1 = document.querySelector('inp1');
let inp2 = document.querySelector('inp2');

button.addEventListener('click', function() {
  res.value = inp1.value + inp2.value;
});

Задание 11

Düwmä basylanda barlamaly, inputdaky tekst onuň data atributy bilen gatnaşyklamalymy:

html<input data-text="text1">
<input data-text="text2">
<input data-text="text3">

<button id="btn">click</button>

javascriptlet inputs = document.querySelectorAll('input')
let button = document.querySelector('#button')

button.addEventListener('click',function() {
  for (let input of inputs) {
    if (input.value === input.dataset) {
      input.classList.add('right')
    } else {
      input.classList.add('wrong')
    }
  }
});

Задание 12

Düwmä basylanda barlamaly, inputdaky tekst degişli massiw elementiniň teksti bilen gatnaşyklamalymy:

html<input>
<input>
<input>

<button id="btn">click</button>

javascriptlet inputs = document.querySelectorAll('input')
let button = document.querySelector('#button')

let texts = [
  'text1',
  'text2',
  'text3',
];

button.addEventListener('click',function() {
  for (let input of inputs) {
    for (let text of texts) {
      if (input.value === text) {
        input.classList.add('right')
      } else {
        input.classList.add('wrong')
      }
    }
  }
});

Задание 13

Inputlara sanlar girizilýär. Düwmä basylanda konsola girizilen sanlaryň jemi çap edilmeli:

html<input>
<input>
<input>

<button id="btn">click</button>

javascriptlet inputs = document.querySelectorAll('inputs');
let btn = document.querySelector('#btm');
let sum = 0;

btn.addEventListener('click', function() {
  for (let input of inputs) {
    sum += Number(input);
  }
  
  console.log(sum);
});

Задание 14

Ilkinji iki inputa sanlar girizilýär. Düwmä basylanda üçünji inputa şol sanlaryň jemi çap edilmeli:

html<input id="inp1">
<input id="inp2">
<input id="inp3">

<button id="btn">click</button>

javascriptlet btn  = document.querySelector('#btn');
let inp1 = document.querySelector('#inp1');
let inp2 = document.querySelector('#inp2');
let inp3 = document.querySelector('#inp3');

let sum  = inp1.value + inp2.value;

btn.addEventListener('click', function() {
  inp3.value = sum;
});

Задание 15

Inputa san girizilýär. Fokus ýitirilende konsola şol sanuň sanlarynyň jemi çap edilmeli:

html<input id="inp">

javascriptlet inp = document.querySelector('#inp').value;

inp.addEventListener('blur', function() {
  let digits = +inp.split('');
  let sum = 0;
  
  for (let digit of digits) {
    sum += digit;
  }
  
  console.log(sum);
});