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Mini Shell
Mini Shell
var has = Object.prototype.hasOwnProperty;
function find(iter, tar, key) {
for (key of iter.keys()) {
if (dequal(key, tar)) return key;
}
}
export function dequal(foo, bar) {
var ctor, len, tmp;
if (foo === bar) return true;
if (foo && bar && (ctor=foo.constructor) === bar.constructor) {
if (ctor === Date) return foo.getTime() === bar.getTime();
if (ctor === RegExp) return foo.toString() === bar.toString();
if (ctor === Array) {
if ((len=foo.length) === bar.length) {
while (len-- && dequal(foo[len], bar[len]));
}
return len === -1;
}
if (ctor === Set) {
if (foo.size !== bar.size) {
return false;
}
for (len of foo) {
tmp = len;
if (tmp && typeof tmp === 'object') {
tmp = find(bar, tmp);
if (!tmp) return false;
}
if (!bar.has(tmp)) return false;
}
return true;
}
if (ctor === Map) {
if (foo.size !== bar.size) {
return false;
}
for (len of foo) {
tmp = len[0];
if (tmp && typeof tmp === 'object') {
tmp = find(bar, tmp);
if (!tmp) return false;
}
if (!dequal(len[1], bar.get(tmp))) {
return false;
}
}
return true;
}
if (ctor === ArrayBuffer) {
foo = new Uint8Array(foo);
bar = new Uint8Array(bar);
} else if (ctor === DataView) {
if ((len=foo.byteLength) === bar.byteLength) {
while (len-- && foo.getInt8(len) === bar.getInt8(len));
}
return len === -1;
}
if (ArrayBuffer.isView(foo)) {
if ((len=foo.byteLength) === bar.byteLength) {
while (len-- && foo[len] === bar[len]);
}
return len === -1;
}
if (!ctor || typeof foo === 'object') {
len = 0;
for (ctor in foo) {
if (has.call(foo, ctor) && ++len && !has.call(bar, ctor)) return false;
if (!(ctor in bar) || !dequal(foo[ctor], bar[ctor])) return false;
}
return Object.keys(bar).length === len;
}
}
return foo !== foo && bar !== bar;
}
Zerion Mini Shell 1.0