From 36bee96c930bb5815e6b7130fdb0333d567a5b58 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=84=9A=E4=BA=BA=E7=A0=81=E5=A4=B4?= <feiwen8772@qq.com>
Date: Thu, 21 Dec 2017 22:09:55 +0800
Subject: [PATCH 1/5] Add numberWithCommas
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Use commas to separate digits。
---
 snippets/numberWithCommas.md | 19 +++++++++++++++++++
 tag_database                 |  1 +
 2 files changed, 20 insertions(+)
 create mode 100644 snippets/numberWithCommas.md

diff --git a/snippets/numberWithCommas.md b/snippets/numberWithCommas.md
new file mode 100644
index 000000000..afb8a7f08
--- /dev/null
+++ b/snippets/numberWithCommas.md
@@ -0,0 +1,19 @@
+### numberWithCommas
+
+Use commas to separate digits。
+
+Use `toString()` to convert the number `num` to a string, then use `/\B(?=(\d{3})+(?!\d))/g` to separate every three characters with a comma,except word boundary。
+
+ ```js
+const toThousands = (num) => {
+  let cleanNum = num.toString().split('').filter(n => '0123456789.'.includes(n)).join('') 
+  let wholeNum = cleanNum.split('.')[0].replace(/\B(?=(\d{3})+(?!\d))/g, ",")
+  let decNum = `.${cleanNum.split('.')[1]}`
+  return wholeNum + decNum;
+}
+
+// toThousands(12305030388.9087) //-> '12,305,030,388.9087'
+// toThousands(123.889087e2) //-> '12,388.9087'
+// toThousands('12305030388.9087') //-> '12,305,030,388.9087'
+// toThousands('12305abc030388.9087') // -> '12,305,030,388.9087'
+```
diff --git a/tag_database b/tag_database
index bc9f671f3..17c6ab438 100644
--- a/tag_database
+++ b/tag_database
@@ -123,3 +123,4 @@ without:array
 words:string
 zip:array
 zipObject:array
+numberWithCommas:utility
\ No newline at end of file

From 73b130fff2a098af1f3d718d79dd8ed4b3167146 Mon Sep 17 00:00:00 2001
From: David Wu <david10608@gmail.com>
Date: Thu, 21 Dec 2017 15:22:13 +0100
Subject: [PATCH 2/5] Update tag_database

---
 tag_database | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tag_database b/tag_database
index 17c6ab438..8b6dd43af 100644
--- a/tag_database
+++ b/tag_database
@@ -123,4 +123,4 @@ without:array
 words:string
 zip:array
 zipObject:array
-numberWithCommas:utility
\ No newline at end of file
+numberWithCommas:utility

From f76e8f357c269ca748d5c2b6132a41c4b042f0b5 Mon Sep 17 00:00:00 2001
From: David Wu <david10608@gmail.com>
Date: Thu, 21 Dec 2017 15:29:32 +0100
Subject: [PATCH 3/5] Update numberWithCommas.md

---
 snippets/numberWithCommas.md | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/snippets/numberWithCommas.md b/snippets/numberWithCommas.md
index afb8a7f08..d10bd6142 100644
--- a/snippets/numberWithCommas.md
+++ b/snippets/numberWithCommas.md
@@ -1,19 +1,18 @@
-### numberWithCommas
+### toDecimalMark
 
 Use commas to separate digits。
 
 Use `toString()` to convert the number `num` to a string, then use `/\B(?=(\d{3})+(?!\d))/g` to separate every three characters with a comma,except word boundary。
 
  ```js
-const toThousands = (num) => {
+const toDecimalMark = (num) => {
   let cleanNum = num.toString().split('').filter(n => '0123456789.'.includes(n)).join('') 
   let wholeNum = cleanNum.split('.')[0].replace(/\B(?=(\d{3})+(?!\d))/g, ",")
   let decNum = `.${cleanNum.split('.')[1]}`
   return wholeNum + decNum;
 }
 
-// toThousands(12305030388.9087) //-> '12,305,030,388.9087'
-// toThousands(123.889087e2) //-> '12,388.9087'
-// toThousands('12305030388.9087') //-> '12,305,030,388.9087'
-// toThousands('12305abc030388.9087') // -> '12,305,030,388.9087'
+// toDecimalMark(12305030388.9087) //-> '12,305,030,388.9087'
+// toDecimalMark(123.889087e2) //-> '12,388.9087'
+// toDecimalMark('12305abc030388.9087') // -> '12,305,030,388.9087'
 ```

From b65d0bd702558271e8ea3b0df673a1ad872ea9c5 Mon Sep 17 00:00:00 2001
From: David Wu <david10608@gmail.com>
Date: Thu, 21 Dec 2017 15:29:51 +0100
Subject: [PATCH 4/5] Rename numberWithCommas.md to toDecimalMark.md

---
 snippets/{numberWithCommas.md => toDecimalMark.md} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename snippets/{numberWithCommas.md => toDecimalMark.md} (100%)

diff --git a/snippets/numberWithCommas.md b/snippets/toDecimalMark.md
similarity index 100%
rename from snippets/numberWithCommas.md
rename to snippets/toDecimalMark.md

From 07337c25b5238a463ad89011cb14b443efda6494 Mon Sep 17 00:00:00 2001
From: David Wu <david10608@gmail.com>
Date: Thu, 21 Dec 2017 15:37:35 +0100
Subject: [PATCH 5/5] Update toDecimalMark.md

---
 snippets/toDecimalMark.md | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/snippets/toDecimalMark.md b/snippets/toDecimalMark.md
index d10bd6142..79cea1840 100644
--- a/snippets/toDecimalMark.md
+++ b/snippets/toDecimalMark.md
@@ -1,8 +1,8 @@
 ### toDecimalMark
 
-Use commas to separate digits。
+Convert a float-point arithmetic to the [Decimal mark](https://en.wikipedia.org/wiki/Decimal_mark) form.
 
-Use `toString()` to convert the number `num` to a string, then use `/\B(?=(\d{3})+(?!\d))/g` to separate every three characters with a comma,except word boundary。
+Use `toString()` to convert the float `num` to a string, then use regex to separate every three characters of the integer part with a comma.
 
  ```js
 const toDecimalMark = (num) => {
@@ -11,7 +11,6 @@ const toDecimalMark = (num) => {
   let decNum = `.${cleanNum.split('.')[1]}`
   return wholeNum + decNum;
 }
-
 // toDecimalMark(12305030388.9087) //-> '12,305,030,388.9087'
 // toDecimalMark(123.889087e2) //-> '12,388.9087'
 // toDecimalMark('12305abc030388.9087') // -> '12,305,030,388.9087'