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import Element from './Element.js'
import {extend} from './tools.js'
extend(Element, {
// Store data values on svg nodes
data (a, v, r) {
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
}
})
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