Added clues on index and length & fixed strings having default keywords.

02_Day_Data_types/string_methods/accessing_character.js

@@ -7,6 +7,8 @@ let secondLetter = string[1] // a
 let thirdLetter = string[2]
 let lastLetter = string[9]
 console.log(lastLetter) // t
-let lastIndex = string.length - 1
+let lastIndex = string.length -1
 console.log(lastIndex) // 9
 console.log(string[lastIndex]) // t
+
+//Remember always in JS Index starts with 0 & Length you can count from 1.

02_Day_Data_types/string_methods/match.js

@@ -1,17 +1,17 @@
 // match: it takes a substring or regular expression pattern as an argument and it returns an array if there is match if not it returns null. Let us see how a regular expression pattern looks like. It starts with / sign and ends with / sign.
-let string = 'love'
+let str = 'love'
 let patternOne = /love/ // with out any flag
 let patternTwo = /love/gi // g-means to search in the whole text, i - case insensitive
-string.match(substring)
-let string = 'I love JavaScript. If you do not love JavaScript what else can you love.'
-console.log(string.match('love')) //
+console.log (str.match('love'))
+let str2 = 'I love JavaScript. If you do not love JavaScript what else can you love.'
+console.log(str2.match('love')) //
 /*
 output
 
 ["love", index: 2, input: "I love JavaScript. If you do not love JavaScript what else can you love.", groups: undefined]
 */
 let pattern = /love/gi
-console.log(string.match(pattern)) // ["love", "love", "love"]
+console.log(str.match(pattern)) // ["love", "love", "love"]
 // Let us extract numbers from text using regular expression. This is not regular expression section, no panic.
 
 let txt = 'In 2019, I run 30 Days of Python. Now, in 2020 I super exited to start this challenge'