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module builtin
struct map {
m JS.Map
len int
}
// Removes the mapping of a particular key from the map.
[unsafe]
pub fn (mut m map) delete(key voidptr) {
#m.map.delete(key)
}
pub fn (m &map) free() {}
#map.prototype[Symbol.iterator] = function () { return this.map[Symbol.iterator](); }
#map.prototype.toString = function () {
#function fmtKey(key) { return typeof key == 'string' ? '\'' + key + '\'' : key}
#let res = '{'
#for (const entry of this) {
#res += fmtKey(entry[0]) + ': ' + entry[0];
#}
#res += '}'
#return res;
#}
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