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add type to Point.dist and fix error

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Rett Berg 2020-03-21 11:20:23 -06:00
parent 1599a765c5
commit d0e82c10cd
1 changed files with 3 additions and 3 deletions
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6
typescript.html.markdown
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@ -114,7 +114,7 @@ class Point {
} }
// Functions // Functions
dist() { return Math.sqrt(this.x * this.x + this.y * this.y); } dist(): number { return Math.sqrt(this.x * this.x + this.y * this.y); }
// Static members // Static members
static origin = new Point(0, 0); static origin = new Point(0, 0);
@ -137,9 +137,9 @@ class Point3D extends Point {
} }
// Overwrite // Overwrite
dist() { dist(): number {
let d = super.dist(); let d = super.dist();
return Math.sqrt(d() * d() + this.z * this.z); return Math.sqrt(d * d + this.z * this.z);
} }
} }