Created
June 29, 2021 08:33
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High Low Game
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| class Game { | |
| constructor({ $buttons, $result, $reset }) { | |
| this.answer = null; | |
| this.$buttons = $buttons; | |
| this.$result = $result; | |
| this.$reset = $reset; | |
| } | |
| start() { | |
| this.answer = Math.floor((Math.random() * 5) + 1); | |
| for (const $button of this.$buttons) { | |
| $button.addEventListener("click", this._handleChoice.bind(this)); | |
| } | |
| this.$result.textContent = "数字を選んでね"; | |
| this.$reset.addEventListener("click", this._handleReset.bind(this)); | |
| this.$reset.style.display = "none"; | |
| } | |
| _handleChoice(ev) { | |
| const value = Number(ev.currentTarget.textContent); | |
| if (value < this.answer) | |
| return this.$result.textContent = "Low"; | |
| if (value > this.answer) | |
| return this.$result.textContent = "High"; | |
| this.$result.textContent = "正解!"; | |
| this.$reset.style.display = "block"; | |
| } | |
| _handleReset() { | |
| this.answer = Math.floor((Math.random() * 5) + 1); | |
| this.$result.textContent = "数字を選んでね"; | |
| this.$reset.style.display = "none"; | |
| } | |
| } | |
| new Game({ | |
| $buttons: document.querySelectorAll("[data-js-button]"), | |
| $result: document.querySelector("[data-js-result]"), | |
| $reset: document.querySelector("[data-js-reset]"), | |
| }).start() |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <button data-js-button>1</button> | |
| <button data-js-button>2</button> | |
| <button data-js-button>3</button> | |
| <button data-js-button>4</button> | |
| <button data-js-button>5</button> | |
| <div data-js-result></div> | |
| <button data-js-reset>リセット</button> | |
| </body> | |
| </html> |
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