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leebyronleebyron
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hasIn is to has as getIn is to get.
closes immutable-js#247
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‎dist/immutable.d.ts

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@@ -1346,6 +1346,12 @@ declare module 'immutable' {
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getIn(searchKeyPath: Array<any>, notSetValue?: any): any;
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getIn(searchKeyPath: Iterable<any, any>, notSetValue?: any): any;
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/**
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* True if the result of following a path of keys or indices through nested
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* Iterables results in a set value.
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*/
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hasIn(searchKeyPath): boolean;
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// Conversion to JavaScript types
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‎dist/immutable.js

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@@ -532,6 +532,9 @@ var $Iterable = Iterable;
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has: function(searchKey) {
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return this.get(searchKey, NOT_SET) !== NOT_SET;
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},
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hasIn: function(searchKeyPath) {
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return this.getIn(searchKeyPath, NOT_SET) !== NOT_SET;
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},
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isSubset: function(iter) {
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iter = typeof iter.contains === 'function' ? iter : $Iterable(iter);
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return this.every((function(value) {

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