Fix typos

packages/0x.js/src/0x.ts

@@ -83,7 +83,7 @@ export class ZeroEx {
     }
     /**
      * Generates a pseudo-random 256-bit salt.
-     * The salt can be included in an 0x order, ensuring that the order generates a unique orderHash
+     * The salt can be included in a 0x order, ensuring that the order generates a unique orderHash
      * and will not collide with other outstanding orders that are identical in all other parameters.
      * @return  A pseudo-random 256-bit number that can be used as a salt.
      */

packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts

@@ -64,7 +64,7 @@ export class EtherTokenWrapper extends ContractWrapper {
      * equivalent number of wrapped ETH tokens.
      * @param   etherTokenAddress   EtherToken address you wish to withdraw from.
      * @param   amountInWei  Amount of ETH in Wei the caller wishes to withdraw.
-     * @param   withdrawer   The hex encoded user Ethereum address that would like to make the withdrawl.
+     * @param   withdrawer   The hex encoded user Ethereum address that would like to make the withdrawal.
      * @param   txOpts       Transaction parameters.
      * @return Transaction hash.
      */
@@ -96,7 +96,7 @@ export class EtherTokenWrapper extends ContractWrapper {
     }
     /**
      * Gets historical logs without creating a subscription
-     * @param   etherTokenAddress   An address of the ether token that emmited the logs.
+     * @param   etherTokenAddress   An address of the ether token that emitted the logs.
      * @param   eventName           The ether token contract event you would like to subscribe to.
      * @param   blockRange          Block range to get logs from.
      * @param   indexFilterValues   An object where the keys are indexed args returned by the event and

packages/0x.js/src/contract_wrappers/exchange_wrapper.ts

@@ -860,7 +860,7 @@ export class ExchangeWrapper extends ContractWrapper {
         return isRoundingError;
     }
     /**
-     * Checks if logs contain LogError, which is emmited by Exchange contract on transaction failure.
+     * Checks if logs contain LogError, which is emitted by Exchange contract on transaction failure.
      * @param   logs   Transaction logs as returned by `zeroEx.awaitTransactionMinedAsync`
      */
     public throwLogErrorsAsErrors(logs: Array<LogWithDecodedArgs<DecodedLogArgs> | Web3.LogEntry>): void {

packages/0x.js/src/contract_wrappers/token_wrapper.ts

@@ -385,7 +385,7 @@ export class TokenWrapper extends ContractWrapper {
     }
     /**
      * Gets historical logs without creating a subscription
-     * @param   tokenAddress        An address of the token that emmited the logs.
+     * @param   tokenAddress        An address of the token that emitted the logs.
      * @param   eventName           The token contract event you would like to subscribe to.
      * @param   blockRange          Block range to get logs from.
      * @param   indexFilterValues   An object where the keys are indexed args returned by the event and

packages/0x.js/src/order_watcher/order_state_watcher.ts

@@ -59,7 +59,7 @@ const DEFAULT_CLEANUP_JOB_INTERVAL_MS = 1000 * 60 * 60; // 1h
 /**
  * This class includes all the functionality related to watching a set of orders
  * for potential changes in order validity/fillability. The orderWatcher notifies
- * the subscriber of these changes so that a final decison can be made on whether
+ * the subscriber of these changes so that a final decision can be made on whether
  * the order should be deemed invalid.
  */
 export class OrderStateWatcher {

packages/0x.js/test/ether_token_wrapper_test.ts

@@ -137,7 +137,7 @@ describe('EtherTokenWrapper', () => {
             gasCost = expectedETHBalance.minus(postETHBalance);
             expect(gasCost).to.be.bignumber.lte(MAX_REASONABLE_GAS_COST_IN_WEI);
         });
-        it('should throw if user has insufficient WETH balance for withdrawl', async () => {
+        it('should throw if user has insufficient WETH balance for withdrawal', async () => {
             const preWETHBalance = await zeroEx.token.getBalanceAsync(wethContractAddress, addressWithETH);
             expect(preWETHBalance).to.be.bignumber.equal(0);
 

packages/website/md/docs/json_schemas/usage.md

@@ -1,4 +1,4 @@
-The following example shows you how to validate an 0x order using the `@0xproject/json-schemas` package.
+The following example shows you how to validate a 0x order using the `@0xproject/json-schemas` package.
 
 ```javascript
 import {SchemaValidator, ValidatorResult, schemas} from '@0xproject/json-schemas';