Changed from <string>.startsWith to _.startsWith

2 files changed, 2 insertions, 2 deletions

diff --git a/packages/utils/src/abi_encoder/calldata/calldata.ts b/packages/utils/src/abi_encoder/calldata/calldata.ts
index e93d63803..c57ff08c2 100644
--- a/packages/utils/src/abi_encoder/calldata/calldata.ts
+++ b/packages/utils/src/abi_encoder/calldata/calldata.ts
@@ -29,7 +29,7 @@ export class Calldata {
      * If the root block was created by a Method then a selector will likely be set.
      */
     public setSelector(selector: string): void {
-        if (!selector.startsWith('0x')) {
+        if (!_.startsWith(selector, '0x')) {
             throw new Error(`Expected selector to be hex. Missing prefix '0x'`);
         } else if (selector.length !== Constants.HEX_SELECTOR_LENGTH_IN_CHARS) {
             throw new Error(`Invalid selector '${selector}'`);
diff --git a/packages/utils/src/abi_encoder/calldata/raw_calldata.ts b/packages/utils/src/abi_encoder/calldata/raw_calldata.ts
index dfd4cfa72..fbe592fc7 100644
--- a/packages/utils/src/abi_encoder/calldata/raw_calldata.ts
+++ b/packages/utils/src/abi_encoder/calldata/raw_calldata.ts
@@ -13,7 +13,7 @@ export class RawCalldata {
 
     public constructor(value: string | Buffer, hasSelector: boolean = true) {
         // Sanity check
-        if (typeof value === 'string' && !value.startsWith('0x')) {
+        if (typeof value === 'string' && !_.startsWith(value, '0x')) {
             throw new Error(`Expected raw calldata to start with '0x'`);
         }
         // Construct initial values