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Pls can anyone explain to me why the (else if) condition is not working in the code below even when it's condition is meat???

I want to understand why the (else if) statement is not executed when (buy =false) i. E assigned false. var buy = prompt("place your order","order"); x= buy; if(buy=true){alert("thanks for ordering a " + x);} else if(buy=false){alert("thanks for wasting DATA on our site");} else {alert("");}

30th May 2017, 7:17 PM
ibrahim danjuma
ibrahim danjuma - avatar
3 odpowiedzi
+ 10
You need to use == for comparisons. Single = is used to assign a value to a variable. So in the if, you're assigning true to buy, and since buy is true, the if runs and the else if is ignored. if (buy == true) { } else if (buy == false) { } else { }
30th May 2017, 7:23 PM
Tamra
Tamra - avatar
+ 3
Firstly, = is not a comparison. Use == to compare a condition. x = buy; doesn't make sense. What is x? Fix: var x = buy; Even this isn't neccessary though, you can just use buy. Also, for booleans comparing a condition is redundant. Just write: if(buy). However, prompt doesn't return you a boolean it returns you what the user enters. If the user clicks cancel it returns null. So: if(buy != null) { // user entered something } Info on prompt: https://www.w3schools.com/jsref/met_win_prompt.asp
30th May 2017, 7:28 PM
Rrestoring faith
Rrestoring faith - avatar
+ 3
x=buy?
30th May 2017, 7:56 PM
Nomeh Uchenna Gabriel
Nomeh Uchenna Gabriel - avatar