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import { registerMethods } from '../../utils/methods.js'
import { filter, map } from '../../utils/utils.js'
// Store data values on svg nodes
export function data (a, v, r) {
if (a == null) {
// get an object of attributes
return this.data(map(filter(this.node.attributes, (el) => el.nodeName.indexOf('data-') === 0), (el) => el.nodeName.slice(5)))
} else if (a instanceof Array) {
const data = {}
for (const key of a) {
data[key] = this.data(key)
}
return data
} else if (typeof a === 'object') {
for (v in a) {
this.data(v, a[v])
}
} else if (arguments.length < 2) {
try {
return JSON.parse(this.attr('data-' + a))
} catch (e) {
return this.attr('data-' + a)
}
} else {
this.attr('data-' + a,
v === null
? null
: r === true || typeof v === 'string' || typeof v === 'number'
? v
: JSON.stringify(v)
)
}
return this
}
registerMethods('Dom', { data })
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