Commit 6d858fc

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✨ zigzag conversion

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	`1`	`+/**`
	`2`	`+ * @param {string} s`
	`3`	`+ * @param {number} numRows`
	`4`	`+ * @return {string}`
	`5`	`+ */`
	`6`	`+var convert = function (s, numRows) {`
	`7`	`+ if (numRows === 1) return s;`
	`8`	`+ const res = [];`
	`9`	`+ let x = 0;`
	`10`	`+ let y = 0;`
	`11`	`+ let direction = 'DOWN';`
	`12`	`+`
	`13`	`+ for (let i = 0; i < s.length; i++) {`
	`14`	`+ if (!res[y]) {`
	`15`	`+ res[y] = '';`
	`16`	`+ }`
	`17`	`+ res[y] += s[i];`
	`18`	`+`
	`19`	`+ if (direction === 'DOWN') {`
	`20`	`+ if (y + 1 === numRows) {`
	`21`	`+ x++;`
	`22`	`+ y--;`
	`23`	`+ direction = 'RIGHT_UP';`
	`24`	`+ } else {`
	`25`	`+ y++;`
	`26`	`+ }`
	`27`	`+`
	`28`	`+ continue;`
	`29`	`+ }`
	`30`	`+`
	`31`	`+ if (direction === 'RIGHT_UP') {`
	`32`	`+ if (y === 0) {`
	`33`	`+ direction = 'DOWN';`
	`34`	`+ y++;`
	`35`	`+ } else {`
	`36`	`+ x++;`
	`37`	`+ y--;`
	`38`	`+ }`
	`39`	`+`
	`40`	`+ continue;`
	`41`	`+ }`
	`42`	`+ }`
	`43`	`+`
	`44`	`+ return res.reduce((acc, x) => acc + x, '');`
	`45`	`+};`
	`46`	`+convert('AB', 1);`

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