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innerHTML/outerHTML;innerText/outerText;textContent_html/css_WEB-ITnose

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innerHTML v.s. outerHTML
  • Element.innerHTML
  • 　　Reference: https://developer.mozilla.org/en-US/docs/Web/API/Element/innerHTML
  • 　　Functionality
  • 　　Get serialized HTML code describing its descendants.
  • 　　Set : Remove all the children, parse the content string and assign the resulting nodes as the children of the element.
  • Element.outerHTML
  • 　　Reference: https://developer.mozilla.org/en-US/docs/Web/API/Element/outerHTML
  • 　　Functionality
  • 　　Get serialized HTML fragment describling the element and its descendants.
  • 　　Set : Replace the element with the nodes generated by parsing the content string with parent of the element as the context node for the fragment parsing algorithm.
  • 　　NOTE
  • 　　If element has no parent element, set outerHTML will throw DOMException.
  • 　　e.g. [Chrome Dev Console] document.documentElement.outerHTML='a'; Uncaught DOMException: Failed to set the 'outerHTML' property on 'Element': This element's parent is of type '#document', which is not an element node.
  • 　　Considering below code.

    // HTML:// 
    This is a div.
    container = document.getElementById("container");d = document.getElementById("d");console.log(container.firstChild.nodeName); // logs "DIV"d.outerHTML = "
    This paragraph replaced the original div.
    ";console.log(container.firstChild.nodeName); // logs "P"// The #d div is no longer part of the document tree,// the new paragraph replaced it.

    While the element will be replaced in the document, the variable whose outerHTML property was set will still hold a reference to the original element!

    • innerText and outerText
  • Node.innerText
  • 　　Non-standard: DO NOT use it on production site.
  • HTMLElement.outerText
  • 　　Non-standard: DO NOT use it on production site.
    • Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
    Basic support 4 45 (45) 6 9.6 (probably earlier) 3
    textContent v.s innerText
  • Node.textContent
  • Get: different node types gets different result
  • 　　null: document, notation (use document.documentElement.textContent instead).
  • 　　text inside the node: CDATA, comment, text node, processing instruction. (nodeValue)
  • 　　concatenation of children nodes (excluding comment, processing instruction nodes) text: other types node
  • Set: Remove node children and replace it with a text node.
  • Difference from innerText
  • 　　many... : refer to MDN.
  • Why we still need innerText sometime?
  • 　　Browser compatibility!
  • 　　IE has better support for innerText than for textContent. Only IE9+ supports textContent, but IE6+ supports innerText.
  • 　　Common usage:
  • 　　set

    t[t.innerText ? 'innerText' : 'textContent'] = v.n

  • 　get

    it = currHeaderChildNodes[i].innerText || currHeaderChildNodes[i].textContent;

    • textContent v.s. innerHTML
  • It's recommand to use textContent!
  • innerHTML parse text as HTML (except "script" element) -> poor performance!
  • innerHTML has security problem!

    • 内容总结

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