forked from daren.hsu/line_push
59 lines
1.6 KiB
JavaScript
59 lines
1.6 KiB
JavaScript
function isUppercase(char = "") {
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return char.toUpperCase() === char;
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}
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const STR_SPLITTERS = ["-", "_", "/", "."];
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function splitByCase(str, splitters = STR_SPLITTERS) {
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const parts = [];
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let buff = "";
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let previusUpper = isUppercase(str[0]);
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let previousSplitter = splitters.includes(str[0]);
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for (const char of str.split("")) {
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const isSplitter = splitters.includes(char);
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if (isSplitter) {
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parts.push(buff);
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buff = "";
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previusUpper = false;
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previousSplitter = true;
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} else if (!previousSplitter && !previusUpper && isUppercase(char)) {
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parts.push(buff);
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buff = char;
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previusUpper = true;
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previousSplitter = false;
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} else {
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buff += char;
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previusUpper = isUppercase(char);
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previousSplitter = isSplitter;
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}
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}
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if (buff) {
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parts.push(buff);
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}
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return parts;
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}
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function upperFirst(str) {
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if (!str) {
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return "";
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}
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return str[0].toUpperCase() + str.substr(1);
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}
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function lowerFirst(str) {
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if (!str) {
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return "";
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}
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return str[0].toLocaleLowerCase() + str.substr(1);
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}
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function pascalCase(str = "") {
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return (Array.isArray(str) ? str : splitByCase(str)).map((p) => upperFirst(p)).join("");
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}
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function camelCase(str = "") {
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return lowerFirst(pascalCase(str));
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}
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function kebabCase(str = "", joiner = "-") {
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return (Array.isArray(str) ? str : splitByCase(str)).map((p = "") => p.toLocaleLowerCase()).join(joiner);
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}
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function snakeCase(str = "") {
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return kebabCase(str, "_");
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}
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export { camelCase, isUppercase, kebabCase, lowerFirst, pascalCase, snakeCase, splitByCase, upperFirst };
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