22 lines
544 B
TypeScript
22 lines
544 B
TypeScript
export function swapElements(a: Node, b: Node) {
|
|
let parent = b.parentNode
|
|
let bNext = b.nextSibling
|
|
|
|
// Special case for when a is the next sibling of b
|
|
if(bNext === a) {
|
|
// Just put a before b
|
|
parent.insertBefore(a, b)
|
|
} else {
|
|
// Insert b right before a
|
|
a.parentNode.insertBefore(b, a)
|
|
|
|
// Now insert a where b was
|
|
if(bNext) {
|
|
// If there was an element after b, then insert a right before that
|
|
parent.insertBefore(a, bNext)
|
|
} else {
|
|
// Otherwise just append it as the last child
|
|
parent.appendChild(a)
|
|
}
|
|
}
|
|
} |