chore: update tests to use specific asserts in project euler problems 11-20 (#60763)

curriculum/challenges/english/18-project-euler/project-euler-problems-1-to-100/problem-11-largest-product-in-a-grid.md

@@ -42,7 +42,7 @@ What is the greatest product of four adjacent numbers in the same direction (up,
 `largestGridProduct(testGrid)` should return a number.
 
 ```js
-assert(typeof largestGridProduct(testGrid) === 'number');
+assert.isNumber(largestGridProduct(testGrid));
 ```
 
 `largestGridProduct(testGrid)` should return 14169081.

curriculum/challenges/english/18-project-euler/project-euler-problems-1-to-100/problem-12-highly-divisible-triangular-number.md

@@ -31,7 +31,7 @@ What is the value of the first triangle number to have over `n` divisors?
 `divisibleTriangleNumber(5)` should return a number.
 
 ```js
-assert(typeof divisibleTriangleNumber(5) === 'number');
+assert.isNumber(divisibleTriangleNumber(5));
 ```
 
 `divisibleTriangleNumber(5)` should return 28.

curriculum/challenges/english/18-project-euler/project-euler-problems-1-to-100/problem-13-large-sum.md

@@ -118,7 +118,7 @@ Work out the first ten digits of the sum of the following one-hundred 50-digit n
 `largeSum(testNums)` should return a number.
 
 ```js
-assert(typeof largeSum(testNums) === 'number');
+assert.isNumber(largeSum(testNums));
 ```
 
 `largeSum(testNums)` should return 8348422521.

curriculum/challenges/english/18-project-euler/project-euler-problems-1-to-100/problem-14-longest-collatz-sequence.md

@@ -29,7 +29,7 @@ Which starting number, under the given `limit`, produces the longest chain?
 `longestCollatzSequence(14)` should return a number.
 
 ```js
-assert(typeof longestCollatzSequence(14) === 'number');
+assert.isNumber(longestCollatzSequence(14));
 ```
 
 `longestCollatzSequence(14)` should return 9.

curriculum/challenges/english/18-project-euler/project-euler-problems-1-to-100/problem-15-lattice-paths.md

@@ -19,7 +19,7 @@ How many such routes are there through a given `gridSize`?
 `latticePaths(4)` should return a number.
 
 ```js
-assert(typeof latticePaths(4) === 'number');
+assert.isNumber(latticePaths(4));
 ```
 
 `latticePaths(4)` should return 70.

curriculum/challenges/english/18-project-euler/project-euler-problems-1-to-100/problem-16-power-digit-sum.md

@@ -17,7 +17,7 @@ What is the sum of the digits of the number 2<sup><code>exponent</code></sup>?
 `powerDigitSum(15)` should return a number.
 
 ```js
-assert(typeof powerDigitSum(15) === 'number');
+assert.isNumber(powerDigitSum(15));
 ```
 
 `powerDigitSum(15)` should return 26.

curriculum/challenges/english/18-project-euler/project-euler-problems-1-to-100/problem-17-number-letter-counts.md

@@ -19,7 +19,7 @@ If all the numbers from 1 to given `limit` inclusive were written out in words,
 `numberLetterCounts(5)` should return a number.
 
 ```js
-assert(typeof numberLetterCounts(5) === 'number');
+assert.isNumber(numberLetterCounts(5));
 ```
 
 `numberLetterCounts(5)` should return 19.

curriculum/challenges/english/18-project-euler/project-euler-problems-1-to-100/problem-18-maximum-path-sum-i.md

@@ -44,7 +44,7 @@ Find the maximum total from top to bottom of the triangle below:
 `maximumPathSumI([[3, 0, 0, 0], [7, 4, 0, 0],[2, 4, 6, 0],[8, 5, 9, 3]])` should return a number.
 
 ```js
-assert(typeof maximumPathSumI(_testTriangle) === 'number');
+assert.isNumber(maximumPathSumI(_testTriangle));
 ```
 
 `maximumPathSumI([[3, 0, 0, 0], [7, 4, 0, 0],[2, 4, 6, 0],[8, 5, 9, 3]])` should return 23.

curriculum/challenges/english/18-project-euler/project-euler-problems-1-to-100/problem-19-counting-sundays.md

@@ -23,7 +23,7 @@ How many Sundays fell on the first of the month during the twentieth century (1
 `countingSundays(1943, 1946)` should return a number.
 
 ```js
-assert(typeof countingSundays(1943, 1946) === 'number');
+assert.isNumber(countingSundays(1943, 1946));
 ```
 
 `countingSundays(1943, 1946)` should return 6.

curriculum/challenges/english/18-project-euler/project-euler-problems-1-to-100/problem-20-factorial-digit-sum.md

@@ -20,7 +20,7 @@ Find the sum of the digits `n`!
 `sumFactorialDigits(10)` should return a number.
 
 ```js
-assert(typeof sumFactorialDigits(10) === 'number');
+assert.isNumber(sumFactorialDigits(10));
 ```
 
 `sumFactorialDigits(10)` should return 27.