Why isn't this Javascript code working?

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I'm very new to coding, a simple correction to my code would be greatly appreciated. Why is this not working?

JavaScript

driver.isElementPresent(By.id('select_level_8647'))

	if (id = 'select_level_8647') {
		console.log('Present')
	}
	else {
		console.log('Not Present')
	}

Posted 12-Aug-15 4:52am

Member 11767186

Updated 12-Aug-15 5:02am

CPallini

v2

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ZurdoDev 12-Aug-15 11:00am

What are you trying to do? What do you mean by "this not working?"

Member 11767186 12-Aug-15 11:06am

I'm trying to ask if the specific id "select_level_8647" is present on the page. If it's present, I wanna console.log "Present" if it's not present I want to console.log "Not Present".

ZurdoDev 12-Aug-15 11:15am

So, are you sure you have a control with id="select_level_8647" on your page?

Member 11767186 12-Aug-15 11:17am

Yes, i'm sure. I just changed my code to...

driver.isElementPresent(By.id('select_level_8647'))
if (id == 'select_level_8647') {
console.log('Present')
}
else {
console.log('Not Present')
}

I utilized two equal signs "==" rather than "=" because apparently "=" assigns a value. I'm getting the following error message.

ReferenceError: id is not defined
at Object.<anonymous> (/Users/adamhannisick/selenium/wait.js:27:6)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)
at startup (node.js:129:16)
at node.js:814:3

ZurdoDev 12-Aug-15 11:21am

Yes, good catch. I did not notice the = vs. ==.

But you never assign anything to id.

I am not familiar with driver but you can easily do this:

var ctl = document.getElementById("select_level_8647");
if (ctl == null)
{
alert ("Control was not found.");
}

Member 11767186 12-Aug-15 11:24am

Could you help me assign something to ID with this below? I'm at work researching everywhere. I appreciate your help!

driver.isElementPresent(document.getElementById('select_level_8647'))
if (id == 'select_level_8647') {
console.log('Present')
}
else {
console.log('Not Present')
}

ZurdoDev 12-Aug-15 11:35am

Don't use isElementPresent. Use that little bit of code I gave you.

Patrice T 12-Aug-15 12:11pm

You should use the "improve question" (in green) when you have sample code changes.

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F-ES Sitecore · Answer 1 · 2015-08-12T05:23:00

Solution 2

JavaScript

if (driver.isElementPresent(By.id('select_level_8647'))) {
        console.log('Present')
    }
    else {
        console.log('Not Present')
    }

Posted 12-Aug-15 5:23am

F-ES Sitecore

Sergey Alexandrovich Kryukov · Answer 2 · 2015-08-12T05:36:00

Equality operator under "if" is wrong. The operator = is assignment. For comparison, it should be either == or ===:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators[^],
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Equality_comparisons_and_sameness[^].

If have no idea what is your driver object, but just the naming driver.isElementPresent suggests that it returns Boolean. But you are not using this return value, not in "if", nowhere.

—SA

Member 11767186 · Answer 3 · 2015-08-12T06:15:00

Solution 4

driver.isElementPresent(document.getElementById(select_level_8647))
if (id == 'select_level_8647') {
console.log('Present')
}
else {
console.log('Not Present')
}

Okay, I fixed the operator assignment but it's still not working. Could you revise this to make it work? Your help is much appreciated.

Posted 12-Aug-15 6:15am

Member 11767186

Comments

Patrice T 12-Aug-15 13:58pm

You should use "Improve question" to update your question rather that using 2 solutions for this

Member 11767186 · Answer 4 · 2015-08-12T06:18:00

Solution 5

Sorry forgot my parenthesis around the id... help me fix this ...

JavaScript

driver.isElementPresent(document.getElementById('select_level_8647'))

    if (id == 'select_level_8647') {
        console.log('Present')
    }
    else{
        console.log('Not Present')
    }

Posted 12-Aug-15 6:18am

Member 11767186

Updated 12-Aug-15 11:44am

v2

Patrice T · Answer 5 · 2015-08-12T06:22:00

Not a specific solution, just a general advice.
You can see what your code is actually doing, and what it is doing wrong.
For this, you need to use a debugger.
The debugger allow you to run your code step by step, and it show you how the variables evolves.

Particularly, you should check what append to id variable before the if

Why isn't this Javascript code working?

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