javascriptnode-webkit

How to do indexOf √ (sqrt character)

How would I check whether a string contains the √ symbol?

var string = '√ foobar'
if (string.indexOf("f") > -1) { alert(string); }

Searching for "f", this finds the "f" in "foobar" fine. For what it's worth, the √ character does show as √ in the alert though: foobar

var string = '√ foobar'
if (string.indexOf("√") > -1) { alert(string); }

Searching for "√" doesn't do anything, no alert message.

Solution

  • It works for me

    var string = '√ foobar'
if (string.indexOf("√") > -1) {
  alert(string);
}

    But maybe the javascript environment which you are in, doesn't recognize the symbol, so I suggest you to try with the Unicode of that symbol. \u221A

    var string = '√ foobar'
if (string.indexOf("\u221A") > -1) { alert(string); }