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edited body

edited Sep 16, 2015 at 7:17

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consider below code

var fruits = ["Banana", "Orange", "Apple", "Mango"]; var index = fruits.indexOf("Apple"); if(index===index != -1) { alert ("Apple found at " + index) } else { alert ("Apple not in exists") }

array indexof returns index number(0 or 1 or 2) of the value if the value exists but returns -1 if the value does not exists.

thanks!

consider below code

var fruits = ["Banana", "Orange", "Apple", "Mango"]; var index = fruits.indexOf("Apple"); if(index=== -1) { alert ("Apple found at " + index) } else { alert ("Apple not in exists") }

array indexof returns index number(0 or 1 or 2) of the value if the value exists but returns -1 if the value does not exists.

thanks!

consider below code

var fruits = ["Banana", "Orange", "Apple", "Mango"]; var index = fruits.indexOf("Apple"); if(index != -1) { alert ("Apple found at " + index) } else { alert ("Apple not in exists") }

array indexof returns index number(0 or 1 or 2) of the value if the value exists but returns -1 if the value does not exists.

thanks!

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answered Sep 15, 2015 at 12:53

Aefits

3.5k
6
33
49

consider below code

var fruits = ["Banana", "Orange", "Apple", "Mango"]; var index = fruits.indexOf("Apple"); if(index=== -1) { alert ("Apple found at " + index) } else { alert ("Apple not in exists") }

array indexof returns index number(0 or 1 or 2) of the value if the value exists but returns -1 if the value does not exists.

thanks!

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