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74 lines
1.2 KiB
74 lines
1.2 KiB
Array.prototype.clean = function(deleteValue) {
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for (var i = 0; i < this.length; i++) {
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if (this[i] == deleteValue) {
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this.splice(i, 1);
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i--;
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}
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}
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return this;
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};
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/*
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Array.findRanges
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Turns this:
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["a","a","a","b","b","c","c","c","c","c","a","a","c"]
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into this:
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{
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"a":[
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{
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"from":0,
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"to":2
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},
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{
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"from":10,
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"to":11
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}
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],
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"b":[
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{
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"from":3,
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"to":4
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}
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],
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"c":[
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{
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"from":5,
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"to":9
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},
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{
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"from":12,
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"to":12
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}
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]
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}
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*/
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Array.prototype.findRanges = function() {
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var buckets = {};
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for(var i = 0; i < this.length; i++) {
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if(!(this[i] in buckets)) {
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buckets[this[i]] = [{
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from: i,
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to: i
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}]
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} else {
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var last = buckets[this[i]][ buckets[this[i]].length-1 ];
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if(i == last.to + 1) {
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last.to = i;
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} else {
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buckets[this[i]].push({
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from: i,
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to: i
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})
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}
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}
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}
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return buckets;
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};
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Object.values = function(obj){ return Object.keys(obj).map(function(key){return obj[key]}) };
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