init_operations() — svelte Function Reference

Architecture documentation for the init_operations() function in operations.js from the svelte codebase.

Function javascript ClientRuntime DOMOperations calls 1 called by 2

Entity Profile

ClientRuntime→ DOMOperations→ init_operations() — svelte Function Reference

Dependency Diagram

graph TD
  a413fb77_0391_6be3_509e_911e3ab4e488["init_operations()"]
  9a9bbc27_46b6_021c_6d77_f736ed4b40f0["operations.js"]
  a413fb77_0391_6be3_509e_911e3ab4e488 -->|defined in| 9a9bbc27_46b6_021c_6d77_f736ed4b40f0
  e6912e2f_bd46_b7e4_ae8b_8a5955a81c03["hydrate()"]
  e6912e2f_bd46_b7e4_ae8b_8a5955a81c03 -->|calls| a413fb77_0391_6be3_509e_911e3ab4e488
  95c17f0f_1042_263c_3de2_f8ab899408b0["_mount()"]
  95c17f0f_1042_263c_3de2_f8ab899408b0 -->|calls| a413fb77_0391_6be3_509e_911e3ab4e488
  ff98bd09_e6fd_2deb_9709_503ac689db35["init_array_prototype_warnings()"]
  a413fb77_0391_6be3_509e_911e3ab4e488 -->|calls| ff98bd09_e6fd_2deb_9709_503ac689db35
  style a413fb77_0391_6be3_509e_911e3ab4e488 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/src/internal/client/dom/operations.js lines 30–73

export function init_operations() {
	if ($window !== undefined) {
		return;
	}

	$window = window;
	$document = document;
	is_firefox = /Firefox/.test(navigator.userAgent);

	var element_prototype = Element.prototype;
	var node_prototype = Node.prototype;
	var text_prototype = Text.prototype;

	// @ts-ignore
	first_child_getter = get_descriptor(node_prototype, 'firstChild').get;
	// @ts-ignore
	next_sibling_getter = get_descriptor(node_prototype, 'nextSibling').get;

	if (is_extensible(element_prototype)) {
		// the following assignments improve perf of lookups on DOM nodes
		// @ts-expect-error
		element_prototype.__click = undefined;
		// @ts-expect-error
		element_prototype.__className = undefined;
		// @ts-expect-error
		element_prototype.__attributes = null;
		// @ts-expect-error
		element_prototype.__style = undefined;
		// @ts-expect-error
		element_prototype.__e = undefined;
	}

	if (is_extensible(text_prototype)) {
		// @ts-expect-error
		text_prototype.__t = undefined;
	}

	if (DEV) {
		// @ts-expect-error
		element_prototype.__svelte_meta = null;

		init_array_prototype_warnings();
	}
}