94 lines
2.2 KiB
TypeScript
94 lines
2.2 KiB
TypeScript
/**
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* 解析首字母转大写
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* @param str 字符串 ab
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* @returns 结果 Ab
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*/
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export function parseFirstUpper(str: string): string {
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if (!str) return str;
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str = str.replace(/[^_\w]+/g, '');
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return str.substring(0, 1).toUpperCase() + str.substring(1);
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}
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/**
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* 解析首字母转小写
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* @param str 字符串 Ab
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* @returns 结果 ab
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*/
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export function parseFirstLower(str: string): string {
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if (!str) return str;
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str = str.replace(/[^_\w]+/g, '');
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return str.substring(0, 1).toLowerCase() + str.substring(1);
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}
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/**
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* 解析下划线转驼峰
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* @param str 字符串 a_b
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* @returns 驼峰风格 aB
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*/
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export function parseStrLineToHump(str: string): string {
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if (!str) return str;
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return str.replace(/_(\w)/g, (_item, letter) => letter.toUpperCase());
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}
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/**
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* 解析驼峰转下划线
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* @param str 字符串 aB
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* @returns 下划线风格 a_b
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*/
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export function parseStrHumpToLine(str: string): string {
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if (!str) return str;
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return str.replace(/([A-Z])/g, '_$1').toLowerCase();
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}
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/**
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* 对象的key值驼峰转下划线
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* @param obj 对象属性 字符数组orJSON对象
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* @returns 驼峰转下划线
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*/
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export function parseObjHumpToLine(obj: any): any {
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if (obj === null || obj === undefined) {
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return obj;
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}
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if (Array.isArray(obj)) {
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return obj.map(v => parseObjHumpToLine(v));
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}
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if (typeof obj === 'object') {
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Object.keys(obj).forEach(key => {
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const new_key = parseStrHumpToLine(key);
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if (new_key !== key) {
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obj[new_key] = obj[key];
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delete obj[key];
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}
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obj[new_key] = parseObjHumpToLine(obj[new_key]);
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});
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return obj;
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}
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return obj;
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}
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/**
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* 对象的key值下划线转驼峰
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* @param obj 对象属性 字符数组orJSON对象
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* @returns 下划线转驼峰
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*/
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export function parseObjLineToHump(obj: any): any {
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if (obj === null || obj === undefined) {
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return obj;
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}
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if (Array.isArray(obj)) {
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return obj.map(v => parseObjLineToHump(v));
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}
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if (typeof obj === 'object') {
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Object.keys(obj).forEach(key => {
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const new_key = parseStrLineToHump(key);
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if (new_key !== key) {
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obj[new_key] = obj[key];
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delete obj[key];
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}
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obj[new_key] = parseObjLineToHump(obj[new_key]);
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});
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return obj;
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}
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return obj;
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}
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