37 lines
801 B
Markdown
37 lines
801 B
Markdown
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---
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title: Iterate Over All Properties
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---
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## Iterate Over All Properties
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### Method
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The method is to use a `for-in-loop` to iterate through every property in the object. Inside the loop you then check if the property is a `own-property` or a `prototype` and place it in the `ownProps[]` array or the `prototypeProps[]` array. Remember to `push` properties to the `beagle` object and not the `Dog` object to pass all test cases.
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### Solution
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```javascript
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function Dog(name) {
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this.name = name;
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}
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Dog.prototype.numLegs = 4;
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let beagle = new Dog("Snoopy");
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let ownProps = [];
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let prototypeProps = [];
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// Add your code below this line
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for (let property in beagle) {
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if(Dog.hasOwnProperty(property)) {
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ownProps.push(property)
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}
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else {
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prototypeProps.push(property)
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}
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}
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```
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