StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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61 lines
2.4 KiB
61 lines
2.4 KiB
4 years ago
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// String utilities
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import { isArray, isPlainObject, isString, isUndefinedOrNull } from './inspect'; // --- Constants ---
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var RX_TRIM_LEFT = /^\s+/;
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var RX_TRIM_RIGHT = /\s+$/;
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var RX_REGEXP_REPLACE = /[-/\\^$*+?.()|[\]{}]/g;
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var RX_UN_KEBAB = /-(\w)/g;
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var RX_HYPHENATE = /\B([A-Z])/g; // --- Utilities ---
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// Converts PascalCase or camelCase to kebab-case
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export var kebabCase = function kebabCase(str) {
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return str.replace(RX_HYPHENATE, '-$1').toLowerCase();
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}; // Converts a kebab-case or camelCase string to PascalCase
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export var pascalCase = function pascalCase(str) {
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str = kebabCase(str).replace(RX_UN_KEBAB, function (_, c) {
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return c ? c.toUpperCase() : '';
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});
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return str.charAt(0).toUpperCase() + str.slice(1);
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}; // Lowercases the first letter of a string and returns a new string
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export var lowerFirst = function lowerFirst(str) {
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str = isString(str) ? str.trim() : String(str);
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return str.charAt(0).toLowerCase() + str.slice(1);
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}; // Uppercases the first letter of a string and returns a new string
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export var upperFirst = function upperFirst(str) {
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str = isString(str) ? str.trim() : String(str);
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return str.charAt(0).toUpperCase() + str.slice(1);
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}; // Escape characters to be used in building a regular expression
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export var escapeRegExp = function escapeRegExp(str) {
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return str.replace(RX_REGEXP_REPLACE, '\\$&');
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}; // Convert a value to a string that can be rendered
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// `undefined`/`null` will be converted to `''`
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// Plain objects and arrays will be JSON stringified
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export var toString = function toString(val) {
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var spaces = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 2;
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return isUndefinedOrNull(val) ? '' : isArray(val) || isPlainObject(val) && val.toString === Object.prototype.toString ? JSON.stringify(val, null, spaces) : String(val);
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}; // Remove leading white space from a string
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export var trimLeft = function trimLeft(str) {
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return toString(str).replace(RX_TRIM_LEFT, '');
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}; // Remove Trailing white space from a string
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export var trimRight = function trimRight(str) {
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return toString(str).replace(RX_TRIM_RIGHT, '');
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}; // Remove leading and trailing white space from a string
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export var trim = function trim(str) {
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return toString(str).trim();
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}; // Lower case a string
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export var lowerCase = function lowerCase(str) {
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return toString(str).toLowerCase();
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}; // Upper case a string
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export var upperCase = function upperCase(str) {
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return toString(str).toUpperCase();
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};
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