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samira313samira313
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Lines changed: 16 additions & 35 deletions

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‎Week1/prep-exercises/1-traffic-light/traffic-light-1.js‎

Lines changed: 5 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -11,21 +11,12 @@ let rotations = 0;
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while (rotations < 2) {
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const currentState = trafficLight.state;
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console.log("The traffic light is on", currentState);
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// TODO
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// if the color is green, turn it orange
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// if the color is orange, turn it red
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// if the color is red, add 1 to rotations and turn it green
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}
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/**
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* The output should be:
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if (currentState === "green") { trafficLight.state = "orange";
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The traffic light is on green
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The traffic light is on orange
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The traffic light is on red
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The traffic light is on green
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The traffic light is on orange
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The traffic light is on red
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} else if (currentState === "orange") { trafficLight.state = "red";
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*/
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} else if (currentState === "red") { trafficLight.state = "green";
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rotations++;
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}

‎Week1/prep-exercises/1-traffic-light/traffic-light-2.js‎

Lines changed: 11 additions & 21 deletions
Original file line numberDiff line numberDiff line change
@@ -1,9 +1,5 @@
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"use strict";
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/**
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* The `possibleStates` property define the states (in this case: colours)
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* in which the traffic light can be.
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* The `stateIndex` property indicates which of the possible states is current.
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*/
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const trafficLight = {
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possibleStates: ["green", "orange", "red"],
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stateIndex: 0,
@@ -14,20 +10,14 @@ while (cycle < 2) {
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const currentState = trafficLight.possibleStates[trafficLight.stateIndex];
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console.log("The traffic light is on", currentState);
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// TODO
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// if the color is green, turn it orange
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// if the color is orange, turn it red
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// if the color is red, add 1 to cycles and turn it green
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}
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/**
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* The output should be:
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The traffic light is on green
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The traffic light is on orange
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The traffic light is on red
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The traffic light is on green
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The traffic light is on orange
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The traffic light is on red
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if (currentState === "green")
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{ trafficLight.stateIndex = 1;
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} else if (currentState === "orange")
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{ trafficLight.stateIndex = 2 ;
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*/
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} else if (currentState === "red") {
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trafficLight.stateIndex = 0;
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cycle++;
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}
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}

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