refactor: use properties object and use utilities

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---

Author: kgryte

lib/node_modules/@stdlib/plot/vega/scale/lib/change_event.js

@@ -0,0 +1,41 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MAIN //
+
+/**
+* Returns a new change event object.
+*
+* @private
+* @param {string} property - property name
+* @returns {Object} event object
+*/
+function event( property ) { // eslint-disable-line stdlib/no-redeclare
+	return {
+		'type': 'update',
+		'source': 'scale',
+		'property': property
+	};
+}
+
+
+// EXPORTS //
+
+module.exports = event;

lib/node_modules/@stdlib/plot/vega/scale/lib/domain-max/get.js

@@ -20,6 +20,11 @@
 
 'use strict';
 
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
 // MAIN //
 
 /**
@@ -29,7 +34,7 @@
 * @returns {(void|number)} maximum value
 */
 function get() {
-	return this._domainMax;
+	return this[ prop.private ];
 }
 
 

lib/node_modules/@stdlib/plot/vega/scale/lib/domain-max/properties.js

@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'domainMax' );
+
+
+// EXPORTS //
+
+module.exports = obj;

lib/node_modules/@stdlib/plot/vega/scale/lib/domain-max/set.js

@@ -26,11 +26,13 @@ var logger = require( 'debug' );
 var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
 var isUndefined = require( '@stdlib/assert/is-undefined' );
 var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
 
 
 // VARIABLES //
 
-var debug = logger( 'vega:scale:set:domainMax' );
+var debug = logger( 'vega:scale:set:'+prop.name );
 
 
 // MAIN //
@@ -49,12 +51,12 @@ var debug = logger( 'vega:scale:set:domainMax' );
 */
 function set( value ) {
 	if ( !isNumber( value ) && !isUndefined( value ) ) {
-		throw new TypeError( format( 'invalid assignment. `%s` must be a number. Value: `%s`.', 'domainMax', value ) );
+		throw new TypeError( format( 'invalid assignment. `%s` must be a number. Value: `%s`.', prop.name, value ) );
 	}
-	if ( value !== this._domainMax ) {
-		debug( 'Current value: %s. New value: %s.', this._domainMax, value );
-		this._domainMax = value;
-		this.emit( 'change' );
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', this[ prop.private ], value );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
 	}
 }
 

lib/node_modules/@stdlib/plot/vega/scale/lib/domain-mid/get.js

@@ -20,6 +20,11 @@
 
 'use strict';
 
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
 // MAIN //
 
 /**
@@ -29,7 +34,7 @@
 * @returns {(void|number)} mid-point value
 */
 function get() {
-	return this._domainMid;
+	return this[ prop.private ];
 }
 
 

lib/node_modules/@stdlib/plot/vega/scale/lib/domain-mid/properties.js

@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'domainMid' );
+
+
+// EXPORTS //
+
+module.exports = obj;

lib/node_modules/@stdlib/plot/vega/scale/lib/domain-mid/set.js

@@ -26,11 +26,13 @@ var logger = require( 'debug' );
 var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
 var isUndefined = require( '@stdlib/assert/is-undefined' );
 var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
 
 
 // VARIABLES //
 
-var debug = logger( 'vega:scale:set:domainMid' );
+var debug = logger( 'vega:scale:set:'+prop.name );
 
 
 // MAIN //
@@ -49,12 +51,12 @@ var debug = logger( 'vega:scale:set:domainMid' );
 */
 function set( value ) {
 	if ( !isNumber( value ) && !isUndefined( value ) ) {
-		throw new TypeError( format( 'invalid assignment. `%s` must be a number. Value: `%s`.', 'domainMid', value ) );
+		throw new TypeError( format( 'invalid assignment. `%s` must be a number. Value: `%s`.', prop.name, value ) );
 	}
-	if ( value !== this._domainMid ) {
-		debug( 'Current value: %s. New value: %s.', this._domainMid, value );
-		this._domainMid = value;
-		this.emit( 'change' );
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', this[ prop.private ], value );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
 	}
 }
 

lib/node_modules/@stdlib/plot/vega/scale/lib/domain-min/get.js

@@ -20,6 +20,11 @@
 
 'use strict';
 
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
 // MAIN //
 
 /**
@@ -29,7 +34,7 @@
 * @returns {(void|number)} minimum value
 */
 function get() {
-	return this._domainMin;
+	return this[ prop.private ];
 }
 
 

lib/node_modules/@stdlib/plot/vega/scale/lib/domain-min/properties.js

@@ -0,0 +1,33 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var property2object = require( '@stdlib/plot/vega/base/property2object' );
+
+
+// MAIN //
+
+var obj = property2object( 'domainMin' );
+
+
+// EXPORTS //
+
+module.exports = obj;

lib/node_modules/@stdlib/plot/vega/scale/lib/domain-min/set.js

@@ -26,11 +26,13 @@ var logger = require( 'debug' );
 var isNumber = require( '@stdlib/assert/is-number' ).isPrimitive;
 var isUndefined = require( '@stdlib/assert/is-undefined' );
 var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
 
 
 // VARIABLES //
 
-var debug = logger( 'vega:scale:set:domainMin' );
+var debug = logger( 'vega:scale:set:'+prop.name );
 
 
 // MAIN //
@@ -49,12 +51,12 @@ var debug = logger( 'vega:scale:set:domainMin' );
 */
 function set( value ) {
 	if ( !isNumber( value ) && !isUndefined( value ) ) {
-		throw new TypeError( format( 'invalid assignment. `%s` must be a number. Value: `%s`.', 'domainMin', value ) );
+		throw new TypeError( format( 'invalid assignment. `%s` must be a number. Value: `%s`.', prop.name, value ) );
 	}
-	if ( value !== this._domainMin ) {
-		debug( 'Current value: %s. New value: %s.', this._domainMin, value );
-		this._domainMin = value;
-		this.emit( 'change' );
+	if ( value !== this[ prop.private ] ) {
+		debug( 'Current value: %s. New value: %s.', this[ prop.private ], value );
+		this[ prop.private ] = value;
+		this.emit( 'change', changeEvent( prop.name ) );
 	}
 }