task--5 提炼函数step1

746023e1 · 李楚霏 · 11022629 · 746023e1
Commit 746023e1 authored 5 years ago by 李楚霏
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Showing with 13 additions and 5 deletions

length/src/index.js
+13 -5

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--- a/length/src/index.js
+++ b/length/src/index.js
@@ -19,15 +19,15 @@ export class Length {
    let unitLength = this
    if (this.unit === Constants.Constants.YARD) {
      if (unitNode === Constants.Constants.FOOT) {
-        unitLength = new Length(this.value * 3, unitNode)
+        unitLength = new Length(this.multipleValue(3), unitNode)
      } else if (unitNode === Constants.Constants.INCH) {
-        unitLength = new Length(this.value * 36, unitNode)
+        unitLength = new Length(this.multipleValue(36), unitNode)
      }
    }
    if (this.unit === Constants.Constants.INCH) {
      if (unitNode === Constants.Constants.YARD) {
-        unitLength = new Length(this.value / 36, unitNode)
+        unitLength = new Length(this.divisionValue(36), unitNode)
      } else if (unitNode === Constants.Constants.FOOT) {
        unitLength = new Length(this.value / 12, unitNode)
      }
@@ -35,12 +35,20 @@ export class Length {
    if (this.unit === Constants.Constants.FOOT) {
      if (unitNode === Constants.Constants.YARD) {
-        unitLength = new Length(this.value / 3, unitNode)
+        unitLength = new Length(this.divisionValue(3), unitNode)
      } else if (unitNode === Constants.Constants.INCH) {
-        unitLength = new Length(this.value * 12, unitNode)
+        unitLength = new Length(this.multipleValue(12), unitNode)
      }
    }
    return unitLength
  }
+  divisionValue(conversion_Target_Unit_Value) {
+    return this.value / conversion_Target_Unit_Value
+  }
+  multipleValue(conversion_Target_Unit_Value) {
+    return this.value * conversion_Target_Unit_Value
+  }
 }