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| <body> | |
| <div> | |
| <div> | |
| <div id="cont" class="content"> | |
| <p class="p1">Paragrafo 1</p> | |
| <p class="p2">Paragrafo 2</p> | |
| <p class="p3"> | |
| <input name="nome" value="teste" /> | |
| </p> | |
| </div> |
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| const content = document.querySelector('.content'); | |
| let p = document.querySelector('p'); | |
| let pList = document.querySelectorAll('p'); | |
| console.log(p); // <p class="p1">Paragrafo 1</p> | |
| p = document.querySelector('.content > p.p3'); | |
| console.log(p); // <p class="p3">...</p> | |
| console.log(pList); // [p.p1, p.p2, p.p3] |
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| console.log(document.getElementById('cont')); // <div id="cont" class="content">...</div> | |
| console.log(document.getElementsByClassName('content')); // [div#cont.content] | |
| console.log(document.getElementsByTagName('div')); // [div, div, div#cont.content] |
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| let p = document.querySelector('.content > p'); | |
| console.log(document.parentNode); // <div id="cont" class="content">...</div> | |
| console.log(document.parentElement); // <div id="cont" class="content">...</div> |
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| const p = document.querySelector('.p2'); | |
| console.log(p.previousElementSibling); // <p class="p1">Paragrafo 1</p> | |
| console.log(p.nextElementSibling); // <p class="p3">...</p> |
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| const p = document.querySelector('.content'); | |
| console.log(p.children); // [p.p1, p.p2, p.p3] | |
| console.log(p.childNodes); // [text, p.p1, text, p.p2, text, p.p3, text] |
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| const p = document.querySelector('.p1'); | |
| HTMLElement.prototype.parentsByTagName = function(tn) { | |
| let arrayElements = []; | |
| let currentEl = this; | |
| while (currentEl) { | |
| currentEl = currentEl.parentElement; | |
| if (!currentEl) return arrayElements; | |
| if (currentEl.tagName === tn) { |
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| const p = document.querySelector('.p1'); | |
| const parents = function (el) { | |
| let arrayElements = []; | |
| let currentEl = el; | |
| return function findParentByTagName(tn) { | |
| currentEl = currentEl.parentElement; | |
| if (!currentEl) return arrayElements; | |
| if (currentEl.tagName === tn) { |
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| const div = document.createElement('DIV'); | |
| console.log(div); //<div></div> |
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| const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg'); | |
| console.log(svg); //<svg></svg> |
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