\n \n\n\nThe output is:\ntext\nx == y","answerCount":4,"upvoteCount":0,"acceptedAnswer":{"@type":"Answer","text":"It's a node element... (HTMLParagraphElement, as returned in string format ^^)","upvoteCount":4},"suggestedAnswer":[{"@type":"Answer","text":"x and y are not of same type...\nyou should compare:\n\n x.toString() == y","upvoteCount":4},{"@type":"Answer","text":"Thank you!!!","upvoteCount":1},{"@type":"Answer","text":"Thank you visph. What data type is variable \"x\"?","upvoteCount":0}]} }

0

Why x == y, but x !== y in this script? JavaScript, DOM

<!DOCTYPE html> <html> <head> </head> <body> <p id="demo">text</p> <script> var x = document.getElementById("demo"); var y = "[object HTMLParagraphElement]"; if (x == y) { document.write("x == y"); } if (x === y) { document.write("x === y"); } </script> </body> </html> The output is: text x == y

javascript variables dom js identical

3rd Nov 2017, 10:24 AM

Augustinas Lukauskas

4 Respuestas

+ 4

It's a node element... (HTMLParagraphElement, as returned in string format ^^)

3rd Nov 2017, 10:51 AM

visph

+ 4

x and y are not of same type... you should compare: x.toString() == y

3rd Nov 2017, 10:29 AM

visph

+ 1

Thank you!!!

3rd Nov 2017, 10:56 AM

Augustinas Lukauskas

0

Thank you visph. What data type is variable "x"?

3rd Nov 2017, 10:49 AM

Augustinas Lukauskas

En tendencia hoy

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