エラーで学ぶJavaScript
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ΤϥʔͰֶͿJavaScript JavaScript Debug Practice
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Τϥʔͷղফͬͯ େมͰ͢ΑͶ…
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• ίʔυ • Τϥʔ ͋Δ͋ΔΤϥʔᶃ
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͋Δ͋ΔΤϥʔᶄ • ίʔυ • Τϥʔ
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͓͢͠Δ͜ͱ • σόοάͰ࠳ંͨ͠ • 256timesͰͷֶͼ • ΤϥʔͰֶͿJavaScript • ࣗݾհ
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͓͢͠Δ͜ͱ • σόοάͰ࠳ંͨ͠ • 256timesͰͷֶͼ • ΤϥʔͰֶͿJavaScript • ࣗݾհ
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աڈͷ͕ࣗΖ͏ͱͨ͜͠ͱ • JavaScriptͷจ๏͚֮ͩ͑ɺྲྀߦͷٕज़ͰϞόΠϧΞϓϦ։ൃ
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աڈͷࣗʹى͖ͨ͜ͱ • ίʔυͷίϐϖΛΈ߹ΘͤͯͲ͔͕͜͏·͍͔͘ͳ͍ • ΤϥʔϝοηʔδΛݕࡧͯ͠ώοτ͠ͳ͍ͱ͓ख্͛ • ݕࡧͯ͠ղܾ͙ͯ͢͠Εͯ·ͨ٧·Δ →࠳ં
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͓͢͠Δ͜ͱ • σόοάͰ࠳ંͨ͠ • 256timesͰͷֶͼ • ΤϥʔͰֶͿJavaScript • ࣗݾհ
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·ͰʹνΣοΫϙΠϯτΛ࡞Δ • ίʔυΛҰؾʹॻ͍ͯͲ͔͕͜͏·͘ಈ͔ͳ͍ →·ͰͷόʔδϣϯΛܾΊͯҰͭҰͭಈ࡞Λ֬ೝ͍ͯ͘͠ Ver0.3ɹɹɹɹɹʮจࣈྻʯΛදࣔ ɹɹVer0.6ɹɹɹʮจࣈྻʯΛʮྻʯ͔Βදࣔ ɹɹɹɹVer1.0ɹʮจࣈྻʯΛʮྻʯ͔ΒʮϥϯμϜʯʹදࣔ
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ϚχϡΞϧΛಡΜͰΈΔ • ΤϥʔϝοηʔδΛݕࡧͯ͠ղܾ͠ͳ͍ͱ٧Ή → ެࣜυΩϡϝϯτ ϚχϡΞϧಡΜͰΈͯɺಈ࡞Λཧղ͢ Δ
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׳Εͷେࣄ͞ • ݕࡧͯ͠ղܾ͙ͯ͢͠Εͯ·ͨ٧·Δ →ʮͰ͖ΔʯʹʮԿݟͳ͍Ͱॻ͚ΔʯΛࢦ͢ ɹʢͰ͖Δ·ͰʹΤϥʔΛܦݧ༷ͯ͠ΛཧղͰ͖Δʣ
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͓͢͠Δ͜ͱ • σόοάͰ࠳ંͨ͠ • 256timesͰͷֶͼ • ΤϥʔͰֶͿJavaScript • ࣗݾհ
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ͳͥΤϥʔΛֶͿͷ͔? • ॏͳΔΤϥʔͰ࣌ؒΛऔΒΕɺΔؾ͕Ε͍͖͕ͯͪ • HTMLCSSʹൺͯɺJavaScriptΤϥʔ͕͋Δͱը໘͕ඳը ͞Εͳ͍͜ͱ͕͋Δ
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खΛಈ͔ͯ͠ΤϥʔΛֶͿػձগͳ͍ • JavaScriptͷΤϥʔֶ͕Δίϯςϯπ • JavaScriptΤϥʔϦϑΝϨϯεɿɹΤϥʔҰཡͱɺαϯϓϧίʔυ • Debugging quizɿɹʹରͯ͠બࢶͰղ • JavaScript Web Quizɿɹʹରͯ͠બࢶͰղ
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JavaScript Debug Practice
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JavaScript Debug Practice • URLίνϥ • JavaScriptͷΤϥʔू • ίʔυΛमਖ਼ͯ͠σόοάΛମݧͰ͖Δ • ώϯτͱͯ͠Α͋͘ΔΤϥʔͱݪҼ·ͱΊΛ༻ҙ
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ʢσϞʣ
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͜ͷࢿྉΛॻ͍ͨਓ • @zawa_zawa0210 • SIerͰΠϯϑϥͱ։ൃࢧԉΛ୲ɻ • JavaScriptྺޒϲ݄͘Β͍ɻ • Ұॹʹ࡞ۀʢ͘͘ձʣͯ͘͠ΕΔํΛืू͍ͯ͠·͢ʂ