@dashkite/joy
Version:
*The simplicity of Lodash with the functional flair of Rambda.*
95 lines (94 loc) • 8.7 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
function _export(target, all) {
for(var name in all)Object.defineProperty(target, name, {
enumerable: true,
get: Object.getOwnPropertyDescriptor(all, name).get
});
}
_export(exports, {
get complement () {
return complement;
},
get difference () {
return difference;
},
get dupes () {
return dupes;
},
get intersection () {
return intersection;
},
get union () {
return union;
},
get unique () {
return unique;
}
});
const _function = require("./function");
var complement, difference, dupes, intersection, union, unique;
union = function(ax, bx) {
var b, cx;
cx = new Set(ax);
for (b of bx){
cx.add(b);
}
return cx;
};
intersection = (0, _function.curry)(function(ax, bx) {
var a, cx;
bx = new Set(bx);
cx = new Set();
for (a of ax){
if (bx.has(a)) {
cx.add(a);
}
}
return cx;
});
complement = function(ax, bx) {
var cx, d, dx;
ax = new Set(ax);
bx = new Set(bx);
cx = new Set();
dx = union(ax, bx);
for (d of dx){
if (!bx.has(d) || !ax.has(d)) {
cx.add(d);
}
}
return cx;
};
difference = function(ax, bx) {
var a, cx;
bx = new Set(bx);
cx = new Set();
for (a of ax){
if (!bx.has(a)) {
cx.add(a);
}
}
return cx;
};
unique = function(ax) {
return new Set(ax);
};
dupes = function(ax) {
var a, bx, cx;
bx = new Set(); // items we've seen at least once
cx = new Set(); // items we've seen at least twice
for (a of ax){
if (bx.has(a)) {
cx.add(a);
} else {
bx.add(a);
}
}
return cx;
};
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//# sourceURL=/@dashkite/joy/src/set.coffee
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