remove multiple concats with one, more efficient, concat
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46fe8ea800
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lib/BIP32.js
75
lib/BIP32.js
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@ -136,28 +136,20 @@ BIP32.prototype.buildExtendedPublicKey = function() {
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}
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// Version
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, new Buffer([v >> 24])]);
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, new Buffer([(v >> 16) & 0xff])]);
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, new Buffer([(v >> 8) & 0xff])]);
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, new Buffer([v & 0xff])]);
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// Depth
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, new Buffer([this.depth])]);
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// Parent fingerprint
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, this.parentFingerprint]);
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// Child index
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, new Buffer([this.childIndex >>> 24])]);
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, new Buffer([(this.childIndex >>> 16) & 0xff])]);
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, new Buffer([(this.childIndex >>> 8) & 0xff])]);
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, new Buffer([this.childIndex & 0xff])]);
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// Chain code
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, this.chainCode]);
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// Public key
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this.extendedPublicKey = Buffer.concat([this.extendedPublicKey, this.eckey.public]);
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this.extendedPublicKey = Buffer.concat([
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new Buffer([v >> 24]),
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new Buffer([(v >> 16) & 0xff]),
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new Buffer([(v >> 8) & 0xff]),
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new Buffer([v & 0xff]),
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new Buffer([this.depth]),
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this.parentFingerprint,
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new Buffer([this.childIndex >>> 24]),
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new Buffer([(this.childIndex >>> 16) & 0xff]),
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new Buffer([(this.childIndex >>> 8) & 0xff]),
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new Buffer([this.childIndex & 0xff]),
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this.chainCode,
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this.eckey.public
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]);
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}
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BIP32.prototype.extendedPublicKeyString = function(format) {
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@ -179,30 +171,21 @@ BIP32.prototype.buildExtendedPrivateKey = function() {
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var v = this.version;
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// Version
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, new Buffer([v >> 24])]);
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, new Buffer([(v >> 16) & 0xff])]);
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, new Buffer([(v >> 8) & 0xff])]);
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, new Buffer([v & 0xff])]);
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// Depth
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, new Buffer([this.depth])]);
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// Parent fingerprint
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, this.parentFingerprint]);
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// Child index
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, new Buffer([this.childIndex >>> 24])]);
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, new Buffer([(this.childIndex >>> 16) & 0xff])]);
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, new Buffer([(this.childIndex >>> 8) & 0xff])]);
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, new Buffer([this.childIndex & 0xff])]);
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// Chain code
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, this.chainCode]);
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// Private key
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, new Buffer([0])]);
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this.extendedPrivateKey = Buffer.concat([this.extendedPrivateKey, this.eckey.private]);
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this.extendedPrivateKey = Buffer.concat([
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new Buffer([v >> 24]),
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new Buffer([(v >> 16) & 0xff]),
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new Buffer([(v >> 8) & 0xff]),
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new Buffer([v & 0xff]),
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new Buffer([this.depth]),
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this.parentFingerprint,
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new Buffer([this.childIndex >>> 24]),
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new Buffer([(this.childIndex >>> 16) & 0xff]),
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new Buffer([(this.childIndex >>> 8) & 0xff]),
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new Buffer([this.childIndex & 0xff]),
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this.chainCode,
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new Buffer([0]),
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this.eckey.private
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]);
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}
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BIP32.prototype.extendedPrivateKeyString = function(format) {
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