solutions and test #15

solutions/15.js

@@ -9,6 +9,18 @@ const solution = (fullString, subString) => {
     return fullString.includes(subString);
 };
 
+// Colin Xie
+const solution1 = (fullString, subString) => {
+  for(let i = 0; i < fullString.length; i++){
+    let subFull = fullString.substring(i,i + subString.length);
+    if(subFull  === subString){
+      return true;
+    }
+  }
+  return false;
+};
+
 module.exports = {
   solution,
+  solution1,
 };

test/15.js

@@ -1,16 +1,35 @@
 const expect = require('chai').expect;
 let solution = require('../solutions/15').solution;
+let solution1 = require('../solutions/15').solution1;
 // solution = require('../yourSolution').solution;
 
 describe('is substring', () => {
   it('should return true if second input is a substring of first input', () => {
-    const result = solution('all your base are belong to us', 'ase ar');
+    let result = solution('all your base are belong to us', 'ase ar');
+    expect(result).to.equal(true);
+    result = solution1('all your base are belong to us', 'ase ar');
     expect(result).to.equal(true);
   });
 
   it('should return false is second input is NOT a substring of first input',
     () => {
-    const result = solution('i love tacos more than you', 'carne asada');
+    let result = solution('i love tacos more than you', 'carne asada');
+    expect(result).to.equal(false);
+    result = solution1('i love tacos more than you', 'carne asada');
+    expect(result).to.equal(false);
+  });
+
+  it('should return true if second input is a substring of the first input', () => {
+    let result = solution('ab cd ef g', 'ef');
+    expect(result).to.equal(true);
+    result = solution1('ab cd ef g', 'ef');
+    expect(result).to.equal(true);
+  });
+
+  it('should return false if second input is NOT a substring of first input', () => {
+    let result = solution('can', 'cn');
+    expect(result).to.equal(false);
+    result = solution1('can', 'cn');
     expect(result).to.equal(false);
   });
 });