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如何檢查 if 條件用戶輸入的單詞是否存在于分配給變量的數(shù)組中

JavaScript

夢(mèng)里花落0921 2023-11-11 16:06:56

請(qǐng)參閱評(píng)論后的第2行。這個(gè)問(wèn)題在代碼注釋中有提到。//valid input to be taken by uservar validanswerone = ["yes" , "YES", "Yes"];//here i want to take multiple form of input the user might type but my efforts are going effort less.var validanswertwo = "no";//only this is working.//conditionsif (userage === validanswerone){ console.log("\n\nPlease put your credit card details in the next page" + ", you will be redirected soon!");}else if(userage === validanswertwo){ console.log("\n\nWe are sorry!"); console.log("\n\nPlease try back in" + " *days remaining to be become 18+ will be added in the coming update still not understood the formula to implicate it*");}else{ console.log("\n\nInvalid input!")}

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4 回答

慕田峪4524236

TA貢獻(xiàn)1875條經(jīng)驗(yàn) 獲得超5個(gè)贊

validanswerone是一個(gè)數(shù)組，您應(yīng)該使用以下命令檢查它Array#includes：

if?(validanswerone.includes(userage))?{
???...
}

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素胚勾勒不出你

TA貢獻(xiàn)1827條經(jīng)驗(yàn) 獲得超9個(gè)贊

這是問(wèn)題的解決方案。通過(guò)使用將所有輸入轉(zhuǎn)換為大寫(xiě)或小寫(xiě)

var age = userage.toUpperCase();

我能夠以任何格式輸入輸入，該輸入會(huì)自動(dòng)轉(zhuǎn)換為我的條件，在本例中為大寫(xiě)。

請(qǐng)有人幫助我正確地重新表述問(wèn)題并發(fā)布答案，以便需要此答案的人能夠輕松找到它。

var readlineSync = require('readline-sync');

//question asked to the user

var userage = readlineSync.question("Are you above the age of 18 for the purchase of the tickets \n(*as of DEC-2020) " + " : ");

var age = userage.toUpperCase();

//valid input to be taken by user

var validanswerone = "YES";

var validanswertwo = "NO";

//conditions

if (age === validanswerone){

console.log("\n\nPlease put your credit card details in the next page" + ", you will be redirected soon!");

}

else if(age === validanswertwo){

console.log("\n\nWe are sorry!");

console.log("\n\nPlease try back in" + " *days remaining to be become 18+ will be added in the coming update still not understood the formula to implicate it*");

}

else{

console.log("\n\nInvalid input!")

}

//final-output

console.log("\n\nThank you, you will be redirected soon!")

希望有一天這能解決某人的一些問(wèn)題！

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ibeautiful

TA貢獻(xiàn)1993條經(jīng)驗(yàn) 獲得超6個(gè)贊

如果數(shù)組僅包含字符串值，并且數(shù)組包含類似 [ {id:1,name:"Aditya"} ] 的對(duì)象，則可以使用Array.includes() 。那么您應(yīng)該使用Array.some()因?yàn)樗诘鷶?shù)組中的事件元素時(shí)應(yīng)用比較邏輯。

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慕妹3242003

TA貢獻(xiàn)1824條經(jīng)驗(yàn) 獲得超6個(gè)贊

您可以使用 JavaScript 中的 include 函數(shù)，無(wú)論數(shù)組中是否存在用戶，它都可以為您提供輸出！像這樣“validanswerone.includes(userage)”，更好的方法是如果您僅為多種形式的 YES 或 NO 創(chuàng)建一個(gè)數(shù)組（您可以使用 .tolower 或 .toCapital 函數(shù)檢查它）

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