From da78a9e329e272dedb2400b79a3bdeebff387d47 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:42:17 -0500 Subject: initial commit --- files/ko/web/api/parentnode/prepend/index.html | 133 +++++++++++++++++++++++++ 1 file changed, 133 insertions(+) create mode 100644 files/ko/web/api/parentnode/prepend/index.html (limited to 'files/ko/web/api/parentnode/prepend') diff --git a/files/ko/web/api/parentnode/prepend/index.html b/files/ko/web/api/parentnode/prepend/index.html new file mode 100644 index 0000000000..1877529adc --- /dev/null +++ b/files/ko/web/api/parentnode/prepend/index.html @@ -0,0 +1,133 @@ +--- +title: ParentNode.prepend() +slug: Web/API/ParentNode/prepend +translation_of: Web/API/ParentNode/prepend +--- +
{{APIRef("DOM")}}
+ +

ParentNode.prepend() 메소드는 {{domxref("Node")}} 객체 또는{{domxref("DOMString")}} 객체를 {{domxref("ParentNode")}}의 첫 자식노드 앞에 삽입한다. {{domxref("DOMString")}} 객체는 {{domxref("Text")}} 노드와 동일하게 삽입된다.

+ +

Syntax

+ +
ParentNode.prepend(...nodesToPrepend);
+
+ +

Parameters

+ +
+
nodesToPrepend
+
One or more nodes to insert before the first child node currently in the ParentNode. Each node can be specified as either a {{domxref("Node")}} object or as a string; strings are inserted as new {{domxref("Text")}} nodes.
+
+ +

Return value

+ +

undefined.

+ +

Exceptions

+ + + +

Examples

+ +

Prepending an element

+ +
var parent = document.createElement("div");
+var p = document.createElement("p");
+var span = document.createElement("span");
+parent.append(p);
+parent.prepend(span);
+
+console.log(parent.childNodes); // NodeList [ <span>, <p> ]
+
+ +

Prepending text

+ +
var parent = document.createElement("div");
+parent.append("Some text");
+parent.prepend("Headline: ");
+
+console.log(parent.textContent); // "Headline: Some text"
+ +

Appending an element and text

+ +
var parent = document.createElement("div");
+var p = document.createElement("p");
+parent.prepend("Some text", p);
+
+console.log(parent.childNodes); // NodeList [ #text "Some text", <p> ]
+ +

ParentNode.prepend() is unscopable

+ +

The prepend() method is not scoped into the with statement. See {{jsxref("Symbol.unscopables")}} for more information.

+ +
var parent = document.createElement("div");
+
+with(parent) {
+  prepend("foo");
+}
+// ReferenceError: prepend is not defined 
+ +

Polyfill

+ +

You can polyfill the prepend() method if it's not available:

+ +
// Source: https://github.com/jserz/js_piece/blob/master/DOM/ParentNode/prepend()/prepend().md
+(function (arr) {
+  arr.forEach(function (item) {
+    if (item.hasOwnProperty('prepend')) {
+      return;
+    }
+    Object.defineProperty(item, 'prepend', {
+      configurable: true,
+      enumerable: true,
+      writable: true,
+      value: function prepend() {
+        var argArr = Array.prototype.slice.call(arguments),
+          docFrag = document.createDocumentFragment();
+
+        argArr.forEach(function (argItem) {
+          var isNode = argItem instanceof Node;
+          docFrag.appendChild(isNode ? argItem : document.createTextNode(String(argItem)));
+        });
+
+        this.insertBefore(docFrag, this.firstChild);
+      }
+    });
+  });
+})([Element.prototype, Document.prototype, DocumentFragment.prototype]);
+ +

Specification

+ + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName('DOM WHATWG', '#dom-parentnode-prepend', 'ParentNode.prepend()')}}{{Spec2('DOM WHATWG')}}Initial definition.
+ +

Browser compatibility

+ + + +

{{Compat("api.ParentNode.prepend")}}

+ +

See also

+ + -- cgit v1.2.3-54-g00ecf