From 2b28ed716d10937ceb4ee27bd9d3b3949b0461d6 Mon Sep 17 00:00:00 2001
From: Suryapratap Singh <suryprtaps@gmail.com>
Date: Fri, 20 Aug 2021 21:13:50 +0530
Subject: [PATCH 1/4] add CheckFlatCase method

---
 String/CheckFlatCase.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 String/CheckFlatCase.js

diff --git a/String/CheckFlatCase.js b/String/CheckFlatCase.js
new file mode 100644
index 000000000..7e842211b
--- /dev/null
+++ b/String/CheckFlatCase.js
@@ -0,0 +1,20 @@
+// CheckFlatCase method checks the given string is in flatcase or not.
+
+// Problem Source & Explanation: https://en.wikipedia.org/wiki/Naming_convention_(programming)
+
+/**
+ * CheckFlatCase method returns true if the string in flatcase, else return the false.
+ * @param {String} varname the name of the variable to check.
+ * @returns `Boolean` return true if the string is in flatcase, else return false.
+ */
+const CheckFlatCase = (varname) => {
+  // firstly, check that input is a string or not.
+  if (typeof varname !== 'string') {
+    return new TypeError('Argument is not a string.')
+  }
+
+  const pat = /^[a-z]*$/
+  return pat.test(varname)
+}
+
+module.exports = CheckFlatCase

From eea8ab3df39108ec40a8ce47eceef338d1f1fe03 Mon Sep 17 00:00:00 2001
From: Suryapratap Singh <suryprtaps@gmail.com>
Date: Fri, 20 Aug 2021 21:26:26 +0530
Subject: [PATCH 2/4] add CheckSnakeCase method

---
 String/CheckSnakeCase.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 String/CheckSnakeCase.js

diff --git a/String/CheckSnakeCase.js b/String/CheckSnakeCase.js
new file mode 100644
index 000000000..6e0483210
--- /dev/null
+++ b/String/CheckSnakeCase.js
@@ -0,0 +1,20 @@
+// CheckSnakeCase method checks the given string is in snake_case or not.
+
+// Problem Source & Explanation: https://en.wikipedia.org/wiki/Naming_convention_(programming)
+
+/**
+ * CheckSnakeCase method returns true if the string in snake_case, else return the false.
+ * @param {String} varName the name of the variable to check.
+ * @returns `Boolean` return true if the string is in snake_case, else return false.
+ */
+const CheckSnakeCase = (varName) => {
+  // firstly, check that input is a string or not.
+  if (typeof varName !== 'string') {
+    return new TypeError('Argument is not a string.')
+  }
+
+  const pat = /(.*?)_([a-zA-Z])*/
+  return pat.test(varName)
+}
+
+module.exports = CheckSnakeCase

From 82e7ede99addbb468201c1fe25332e17b32210c4 Mon Sep 17 00:00:00 2001
From: Suryapratap Singh <suryprtaps@gmail.com>
Date: Fri, 20 Aug 2021 21:45:35 +0530
Subject: [PATCH 3/4] add CheckKebabCase method

---
 String/CheckKebabCase.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 String/CheckKebabCase.js

diff --git a/String/CheckKebabCase.js b/String/CheckKebabCase.js
new file mode 100644
index 000000000..8d104e474
--- /dev/null
+++ b/String/CheckKebabCase.js
@@ -0,0 +1,20 @@
+// CheckKebabCase method checks the given string is in kebab_case or not.
+
+// Problem Source & Explanation: https://en.wikipedia.org/wiki/Naming_convention_(programming)
+
+/**
+ * CheckKebabCase method returns true if the string in kebab_case, else return the false.
+ * @param {String} varName the name of the variable to check.
+ * @returns `Boolean` return true if the string is in kebab_case, else return false.
+ */
+const CheckKebabCase = (varName) => {
+  // firstly, check that input is a string or not.
+  if (typeof varName !== 'string') {
+    return new TypeError('Argument is not a string.')
+  }
+
+  const pat = /(\w+)-(\w)([\w-]*)/
+  return pat.test(varName) && !varName.includes('_')
+}
+
+module.exports = CheckKebabCase

From 6e2506be9e08730dc8e4d6a54bdf12471d4bafa1 Mon Sep 17 00:00:00 2001
From: Suryapratap Singh <suryprtaps@gmail.com>
Date: Fri, 20 Aug 2021 21:49:22 +0530
Subject: [PATCH 4/4] replace _ to -

---
 String/CheckKebabCase.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/String/CheckKebabCase.js b/String/CheckKebabCase.js
index 8d104e474..30bbe976e 100644
--- a/String/CheckKebabCase.js
+++ b/String/CheckKebabCase.js
@@ -1,11 +1,11 @@
-// CheckKebabCase method checks the given string is in kebab_case or not.
+// CheckKebabCase method checks the given string is in kebab-case or not.
 
 // Problem Source & Explanation: https://en.wikipedia.org/wiki/Naming_convention_(programming)
 
 /**
- * CheckKebabCase method returns true if the string in kebab_case, else return the false.
+ * CheckKebabCase method returns true if the string in kebab-case, else return the false.
  * @param {String} varName the name of the variable to check.
- * @returns `Boolean` return true if the string is in kebab_case, else return false.
+ * @returns `Boolean` return true if the string is in kebab-case, else return false.
  */
 const CheckKebabCase = (varName) => {
   // firstly, check that input is a string or not.