feat: add support for formatType property

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Author: kgryte

lib/node_modules/@stdlib/plot/vega/axis/ctor/lib/format-type/get.js

@@ -0,0 +1,43 @@
+/**
+* @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.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var prop = require( './properties.js' );
+
+
+// MAIN //
+
+/**
+* Returns the type of format to use for axis scales which do not have a strict domain data type.
+*
+* @private
+* @returns {(string|void)} value
+*/
+function get() {
+	return this[ prop.private ];
+}
+
+
+// EXPORTS //
+
+module.exports = get;

lib/node_modules/@stdlib/plot/vega/axis/ctor/lib/format-type/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( 'formatType' );
+
+
+// EXPORTS //
+
+module.exports = obj;

lib/node_modules/@stdlib/plot/vega/axis/ctor/lib/format-type/set.js

@@ -0,0 +1,73 @@
+/**
+* @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.
+*/
+
+/* eslint-disable no-invalid-this */
+
+'use strict';
+
+// MODULES //
+
+var logger = require( 'debug' );
+var contains = require( '@stdlib/array/base/assert/contains' ).factory;
+var isUndefined = require( '@stdlib/assert/is-undefined' );
+var join = require( '@stdlib/array/base/join' );
+var format = require( '@stdlib/string/format' );
+var changeEvent = require( './../change_event.js' );
+var prop = require( './properties.js' );
+
+
+// VARIABLES //
+
+var debug = logger( 'vega:axis:set:'+prop.name );
+var FORMATS = [
+	'number',
+	'time',
+	'utc'
+];
+var isFormat = contains( FORMATS );
+
+
+// MAIN //
+
+/**
+* Sets the type of format to use for axis scales which do not have a strict domain data type.
+*
+* ## Notes
+*
+* -   Providing `undefined` "unsets" the configured value.
+*
+* @private
+* @param {(string|void)} value - input value
+* @throws {TypeError} must be a supported format type
+* @returns {void}
+*/
+function set( value ) {
+	if ( !isFormat( value ) && !isUndefined( value ) ) {
+		throw new TypeError( format( 'invalid assignment. `%s` must be one of the following: "%s". Value: `%s`.', prop.name, join( FORMATS, '", "' ), value ) );
+	}
+	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 ) );
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = set;

lib/node_modules/@stdlib/plot/vega/axis/ctor/lib/main.js

@@ -64,6 +64,8 @@ var setDomainWidth = require( './domain-width/set.js' );
 
 var getFormat = require( './format/get.js' );
 var setFormat = require( './format/set.js' );
+var getFormatType = require( './format-type/get.js' );
+var setFormatType = require( './format-type/set.js' );
 
 var getGrid = require( './grid/get.js' );
 var setGrid = require( './grid/set.js' );
@@ -522,6 +524,25 @@ setReadWriteAccessor( Axis.prototype, 'domainDashOffset', getDomainDashOffset, s
 */
 setReadWriteAccessor( Axis.prototype, 'domainOpacity', getDomainOpacity, setDomainOpacity );
 
+/**
+* Stroke width of an axis domain line.
+*
+* @name domainWidth
+* @memberof Axis.prototype
+* @type {(void|NonNegativeNumber)}
+*
+* @example
+* var axis = new Axis({
+*     'scale': 'xScale',
+*     'orient': 'bottom',
+*     'domainWidth': 1
+* });
+*
+* var v = axis.domainWidth;
+* // returns 1
+*/
+setReadWriteAccessor( Axis.prototype, 'domainWidth', getDomainWidth, setDomainWidth );
+
 /**
 * Format specifier for axis tick labels.
 *
@@ -542,23 +563,23 @@ setReadWriteAccessor( Axis.prototype, 'domainOpacity', getDomainOpacity, setDoma
 setReadWriteAccessor( Axis.prototype, 'format', getFormat, setFormat );
 
 /**
-* Stroke width of an axis domain line.
+* Type of format to use for axis scales which do not have a strict domain data type.
 *
-* @name domainWidth
+* @name formatType
 * @memberof Axis.prototype
-* @type {(void|NonNegativeNumber)}
+* @type {(void|string)}
 *
 * @example
 * var axis = new Axis({
 *     'scale': 'xScale',
 *     'orient': 'bottom',
-*     'domainWidth': 1
+*     'formatType': 'number'
 * });
 *
-* var v = axis.domainWidth;
-* // returns 1
+* var v = axis.formatType;
+* // returns 'number'
 */
-setReadWriteAccessor( Axis.prototype, 'domainWidth', getDomainWidth, setDomainWidth );
+setReadWriteAccessor( Axis.prototype, 'formatType', getFormatType, setFormatType );
 
 /**
 * Boolean indicating whether grid lines should be included as part of an axis.