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HTML 5 MCQs

Which of the following code samples will correctly search for the word "for" in a string?

var str="This is test for javascript search !!!"; if(str.search("for") != -1) { alert("true"); } else { alert("false"); }

var str="This is test for javascript search !!!"; if(str.indexof("for") != -1) { alert("true"); } else { alert("false"); }

var str="This is test for javascript search !!!"; if(str.indexOf("for") != -1) { alert("true"); } else { alert("false"); }

var str="This is test for javascript search !!!"; if(str.contains("for") != -1) { alert("true"); } else { alert("false"); }

Answer

Correct Answer: var str="This is test for javascript search !!!"; if(str.search("for") != -1) { alert("true"); } else { alert("false"); }

Explanation:

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