Replaced uses of var with const/let

src/core/asymmetric_equality/ArrayContaining.js

@@ -19,8 +19,7 @@ getJasmineRequireObj().ArrayContaining = function(j$) {
       return false;
     }
 
-    for (var i = 0; i < this.sample.length; i++) {
-      var item = this.sample[i];
+    for (const item of this.sample) {
       if (!matchersUtil.contains(other, item)) {
         return false;
       }

src/core/asymmetric_equality/ArrayWithExactContents.js

@@ -19,8 +19,7 @@ getJasmineRequireObj().ArrayWithExactContents = function(j$) {
       return false;
     }
 
-    for (var i = 0; i < this.sample.length; i++) {
-      var item = this.sample[i];
+    for (const item of this.sample) {
       if (!matchersUtil.contains(other, item)) {
         return false;
       }

src/core/asymmetric_equality/MapContaining.js

@@ -16,7 +16,7 @@ getJasmineRequireObj().MapContaining = function(j$) {
     for (const [key, value] of this.sample) {
       // for each key/value pair in `sample`
       // there should be at least one pair in `other` whose key and value both match
-      var hasMatch = false;
+      let hasMatch = false;
       for (const [oKey, oValue] of other) {
         if (
           matchersUtil.equals(oKey, key) &&

src/core/asymmetric_equality/ObjectContaining.js

@@ -27,7 +27,7 @@ getJasmineRequireObj().ObjectContaining = function(j$) {
       return false;
     }
 
-    for (var property in this.sample) {
+    for (const property in this.sample) {
       if (
         !hasProperty(other, property) ||
         !matchersUtil.equals(this.sample[property], other[property])
@@ -47,7 +47,7 @@ getJasmineRequireObj().ObjectContaining = function(j$) {
       };
     }
 
-    var filteredOther = {};
+    const filteredOther = {};
     Object.keys(this.sample).forEach(function(k) {
       // eq short-circuits comparison of objects that have different key sets,
       // so include all keys even if undefined.

src/core/asymmetric_equality/SetContaining.js

@@ -17,7 +17,7 @@ getJasmineRequireObj().SetContaining = function(j$) {
       // for each item in `sample` there should be at least one matching item in `other`
       // (not using `matchersUtil.contains` because it compares set members by reference,
       // not by deep value equality)
-      var hasMatch = false;
+      let hasMatch = false;
       for (const oItem of other) {
         if (matchersUtil.equals(oItem, item)) {
           hasMatch = true;