Corrected .js files

docs/reference/examples.md

@@ -95,7 +95,7 @@ const server = new StellarSdk.Server('https://horizon-testnet.stellar.org');
     console.log('\nSuccess! View the transaction at: ');
     console.log(transactionResult._links.transaction.href);
   } catch (e) {
-    console.log('An error has occured:');
+    console.log('An error has occurred:');
     console.log(e);
   }
 })();

test/unit/horizon_axios_client_test.js

@@ -13,7 +13,7 @@ describe("getCurrentServerTime", () => {
     clock.restore();
   });
 
-  it("returns null when the hostname hasnt been hit", () => {
+  it("returns null when the hostname hasn't been hit", () => {
     expect(getCurrentServerTime("host")).to.be.null;
   });
 

test/unit/server_transaction_test.js

@@ -241,7 +241,7 @@ describe("server.js transaction tests", function () {
         done(err);
       });
   });
-  it("doesnt add metadata to non-offers", function (done) {
+  it("doesn't add metadata to non-offers", function (done) {
     const response = {
       _links: {
         transaction: {

test/unit/utils_test.js

@@ -530,7 +530,7 @@ describe("Utils", function () {
       );
     });
 
-    it("throws an error if transaction doestn't contain any operation", function () {
+    it("throws an error if transaction doesn't contain any operation", function () {
       let keypair = StellarSdk.Keypair.random();
       const account = new StellarSdk.Account(keypair.publicKey(), "-1");
       const transaction = new StellarSdk.TransactionBuilder(
@@ -2120,7 +2120,7 @@ describe("Utils", function () {
       ).to.eql([this.clientKP2.publicKey()]);
     });
 
-    it("throws an error if no client but insted the server has signed the transaction", function () {
+    it("throws an error if no client but instead the server has signed the transaction", function () {
       const challenge = StellarSdk.Utils.buildChallengeTx(
         this.serverKP,
         this.clientKP1.publicKey(),