How pass slash "\" value in Javascript [duplicate]

Question

I'm trying to pass slash keyword "\" by using javascript. But not taking the slash in text field.

Example:

document.getElementById("demo1").value = "welcome\"

<!DOCTYPE html>
<html>
<body>
  <h2>JavaScript String Properties</h2>
  <p>The length property returns the length of a string:</p>
  Username : <input id="demo1" />
</body>
</html>

Output:

JavaScript String Properties

The length property returns the length of a string:

Username : [It's empty field]

How to pass the "welcome\".

Could please help me how I will get below output.

Username : welcome\

What relevance do ios or objective-c or html tags have? — VLAZ
– VLAZ, Commented Jan 23, 2020 at 11:00

Guruprasad J Rao · Accepted Answer · 2020-01-23 10:54:53Z

2

Just append one more \ to escape the string

document.getElementById("demo1").value = "welcome\\";

<!DOCTYPE html>
<html>
<body>
  <h2>JavaScript String Properties</h2>
  <p>The length property returns the length of a string:</p>
  Username : <input id="demo1" />
</body>

</html>

answered Jan 23, 2020 at 10:54

Guruprasad J Rao

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Comments

Mamun · Accepted Answer · 2020-01-23 11:21:51Z

1

\ (Escape character) is a reserved character and it has a special meaning. You have to escape with another \ to evaluate that literally:

<h2>JavaScript String Properties</h2>
<p>The length property returns the length of a string:</p>
Username : <input id="demo1"/>

<script>
  document.getElementById("demo1").value = "welcome\\"
</script>

edited Jan 23, 2020 at 11:21

answered Jan 23, 2020 at 10:53

Mamun

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Comments

Arun Ramachandran · Accepted Answer · 2020-01-23 10:59:10Z

0

You have to use an escape character(prepend it with a backslash) to get the expected result.

More precisely, it should be

"welcome\\"



document.getElementById("demo1").value = "welcome\\"

answered Jan 23, 2020 at 10:59

Arun Ramachandran

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