Commit 06875ce

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feat: add typescript solution to lc problem: No.0415.Add Strings (doocs#580)

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Lines changed: 21 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -64,6 +64,27 @@ class Solution {`
`64`	`64`	`}`
`65`	`65`	```
`66`	`66`
	`67`	`+### TypeScript`
	`68`	`+`
	`69`	+```ts
	`70`	`+/**`
	`71`	`+ * @param {string} num1`
	`72`	`+ * @param {string} num2`
	`73`	`+ * @return {string}`
	`74`	`+ */`
	`75`	`+var addStrings = function(num1, num2) {`
	`76`	`+ let ans = [];`
	`77`	`+ for (let i = num1.length - 1, j = num2.length - 1, sum = 0; i >= 0 \|\| j >= 0 \|\| sum > 0; i--, j--) {`
	`78`	`+ const a = i >= 0 ? parseInt(num1.charAt(i), 10) : 0;`
	`79`	`+ const b = j >= 0 ? parseInt(num2.charAt(j), 10) : 0;`
	`80`	`+ sum += (a + b);`
	`81`	`+ ans.unshift(sum % 10);`
	`82`	`+ sum = Math.floor(sum / 10);`
	`83`	`+ }`
	`84`	`+ return ans.join("");`
	`85`	`+};`
	`86`	+```
	`87`	`+`
`67`	`88`	`### ...`
`68`	`89`
`69`	`90`	```

Lines changed: 21 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -79,6 +79,27 @@ class Solution {`
`79`	`79`	`}`
`80`	`80`	```
`81`	`81`
	`82`	`+### TypeScript`
	`83`	`+`
	`84`	+```ts
	`85`	`+/**`
	`86`	`+ * @param {string} num1`
	`87`	`+ * @param {string} num2`
	`88`	`+ * @return {string}`
	`89`	`+ */`
	`90`	`+var addStrings = function(num1, num2) {`
	`91`	`+ let ans = [];`
	`92`	`+ for (let i = num1.length - 1, j = num2.length - 1, sum = 0; i >= 0 \|\| j >= 0 \|\| sum > 0; i--, j--) {`
	`93`	`+ const a = i >= 0 ? parseInt(num1.charAt(i), 10) : 0;`
	`94`	`+ const b = j >= 0 ? parseInt(num2.charAt(j), 10) : 0;`
	`95`	`+ sum += (a + b);`
	`96`	`+ ans.unshift(sum % 10);`
	`97`	`+ sum = Math.floor(sum / 10);`
	`98`	`+ }`
	`99`	`+ return ans.join("");`
	`100`	`+};`
	`101`	+```
	`102`	`+`
`82`	`103`	`### ...`
`83`	`104`
`84`	`105`	```

Lines changed: 16 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,16 @@`
	`1`	`+/**`
	`2`	`+ * @param {string} num1`
	`3`	`+ * @param {string} num2`
	`4`	`+ * @return {string}`
	`5`	`+ */`
	`6`	`+ var addStrings = function(num1, num2) {`
	`7`	`+ let ans = [];`
	`8`	`+ for (let i = num1.length - 1, j = num2.length - 1, sum = 0; i >= 0 \|\| j >= 0 \|\| sum > 0; i--, j--) {`
	`9`	`+ const a = i >= 0 ? parseInt(num1.charAt(i), 10) : 0;`
	`10`	`+ const b = j >= 0 ? parseInt(num2.charAt(j), 10) : 0;`
	`11`	`+ sum += (a + b);`
	`12`	`+ ans.unshift(sum % 10);`
	`13`	`+ sum = Math.floor(sum / 10);`
	`14`	`+ }`
	`15`	`+ return ans.join("");`
	`16`	`+};`

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