remove lodash.filter() calls

find packages/ -type f -exec sed -i -E \
  -e 's/_\.filter\(([^,]+), function\(([a-zA-Z]+)\) \{/\1.filter(\2 => \{/g' {} +

find packages/ -type f -exec sed -i -E \
  -e 's/_\.filter\(([^,]+), (.* => \{)/\1.filter(\2/g' {} +

Author: dynst

packages/bitcore-lib/lib/transaction/input/multisig.js

@@ -121,7 +121,7 @@ MultiSigInput.prototype._updateScript = function() {
 
 MultiSigInput.prototype._createSignatures = function() {
   return _.map(
-    _.filter(this.signatures, function(signature) { return !_.isUndefined(signature); }),
+    this.signatures.filter(signature => !_.isUndefined(signature)),
     // Future signature types may need refactor of toDER
     function(signature) {
       return BufferUtil.concat([
@@ -153,7 +153,7 @@ MultiSigInput.prototype.countSignatures = function() {
 
 MultiSigInput.prototype.publicKeysWithoutSignature = function() {
   var self = this;
-  return _.filter(this.publicKeys, function(publicKey) {
+  return this.publicKeys.filter(publicKey => {
     return !(self.signatures[self.publicKeyIndex[publicKey.toString()]]);
   });
 };

packages/bitcore-wallet-service/src/lib/chain/btc/index.ts

@@ -597,7 +597,7 @@ export class BtcChain implements IChain {
         {}
       );
 
-      return _.filter(utxos, utxo => {
+      return utxos.filter(utxo => {
         if (utxo.locked) return false;
         if (txp.excludeUnconfirmedUtxos && !txp.replaceTxByFee && !utxo.confirmations) return false;
         if (excludeIndex[utxo.txid + ':' + utxo.vout]) return false;
@@ -619,7 +619,7 @@ export class BtcChain implements IChain {
       }
 
       // remove utxos not economically worth to send
-      utxos = _.filter(utxos, utxo => {
+      utxos = utxos.filter(utxo => {
         if (utxo.satoshis <= feePerInput) return false;
         return true;
       });
@@ -831,7 +831,7 @@ export class BtcChain implements IChain {
           next => {
             const group = groups[i++];
 
-            let candidateUtxos = _.filter(utxos, utxo => {
+            let candidateUtxos = utxos.filter(utxo => {
               return utxo.confirmations >= group;
             });
 

packages/bitcore-wallet-service/src/lib/chain/doge/index.ts

@@ -50,7 +50,7 @@ export class DogeChain extends BtcChain implements IChain {
         {}
       );
 
-      return _.filter(utxos, utxo => {
+      return utxos.filter(utxo => {
         if (utxo.locked) return false;
         if (utxo.satoshis <= feePerInput) return false;
         if (txp.excludeUnconfirmedUtxos && !utxo.confirmations) return false;
@@ -266,7 +266,7 @@ export class DogeChain extends BtcChain implements IChain {
         next => {
           const group = groups[i++];
 
-          const candidateUtxos = _.filter(utxos, utxo => {
+          const candidateUtxos = utxos.filter(utxo => {
             return utxo.confirmations >= group;
           });
 

packages/bitcore-wallet-service/src/lib/model/txproposal.ts

@@ -417,7 +417,7 @@ export class TxProposal {
   }
 
   getCurrentSignatures() {
-    const acceptedActions = _.filter(this.actions, a => {
+    const acceptedActions = this.actions.filter(a => {
       return a.type == 'accept';
     });
 
@@ -459,7 +459,7 @@ export class TxProposal {
    */
   getApprovers() {
     return _.map(
-      _.filter(this.actions, a => {
+      this.actions.filter(a => {
         return a.type == 'accept';
       }),
       'copayerId'

packages/bitcore-wallet-service/src/lib/model/txproposal_legacy.ts

@@ -175,7 +175,7 @@ export class TxProposalLegacy {
 
   getApprovers() {
     return _.map(
-      _.filter(this.actions, a => {
+      this.actions.filter(a => {
         return a.type == 'accept';
       }),
       'copayerId'

packages/bitcore-wallet-service/test/integration/helpers.js

@@ -515,7 +515,7 @@ helpers.stubHistory = function(nr, bcHeight, txs) {
   txs= helpers.createTxsV8(nr,bcHeight, txs);
   blockchainExplorer.getTransactions = function(walletId, startBlock, cb) {
     startBlock = startBlock || 0;
-    var page = _.filter(txs, (x) => {
+    var page = txs.filter(x => {
       return x.height >=startBlock || x.height == -1
     });
     return cb(null, page);

packages/bitcore-wallet/bin/cli-utils.js

@@ -224,7 +224,7 @@ Utils.saveClient = function(args, key, cred, opts, cb) {
 };
 
 Utils.findOneTxProposal = function(txps, id) {
-  var matches = _.filter(txps, function(tx) {
+  var matches = txps.filter(tx => {
     return _.endsWith(Utils.shortID(tx.id), id);
   });
 
@@ -357,7 +357,7 @@ Utils.renderTxProposals = function(txps) {
   console.log("* TX Proposals:")
 
   txps.forEach((x) => {
-    var missingSignatures = x.requiredSignatures - _.filter(Object.values(x.actions), function(a) {
+    var missingSignatures = x.requiredSignatures - Object.values(x.actions).filter(a => {
       return a.type == 'accept';
     }).length;
     console.log("\t%s [\"%s\" by %s] %s => %s", Utils.shortID(x.id), x.message, x.creatorName, Utils.renderAmount(x.amount), x.outputs[0].toAddress);