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Practice A Test JavaScript Ciw questions and answers
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Practice A Test JavaScript Ciw questions and answers
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Practice A Test JavaScript Ciw questionsand answers
You want to include in your form a button labeled Edit, which changes to Save when in edit mode and
changes back to Edit when the form contents are saved. You are calling a function from the onclick event
handler to perform this task. Which of the following is the correct code for that function? - correct
answer ✔✔if(myButton.value =="Edit") {
myButton.value = "Save";
}
else{
myButton.value = "Edit";
}
Which of the following is a valid variable name in JavaScript? - correct answer ✔✔sink
Which of the following correctly defines an object with a property called height, a property called width,
and a method called getArea? - correct answer ✔✔function objRectangle(height, width) {
this.height = height;
this.width = width;
this.getArea = getArea;
}
Consider the following expression:
x = 25;
y = 10;
Which statement would evaluate to true? - correct answer ✔✔x > = y;
, You work for a mid-size company with a large Web site that has a very wide customer base. Which is the
best method for testing your JavaScript code for this site? - correct answer ✔✔Test in various browsers,
versions and operating systems.
Consider the following code:
<script type="text/javascript">
var v1 = "Blue";
function f ()
{
this.v1 = "Green";
alert (this.v1);
}
f();
alert (v1);
</script>
What is the expected result when this script is run in the browser? - correct answer ✔✔Two alert boxes,
both displaying Green
What is a pop-up blocker? - correct answer ✔✔A browser-level security feature
Consider the following statement:
Cookies can be used to store passwords so authentication is not necessary for returning users.
Which of the following choices about this statement is accurate? - correct answer ✔✔The statement is
true, but this practice poses a security risk.
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