Question

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Regex to check if whitespace present?

rated 0 times [ 1] [ 5] / answers: 1 / hits: 76940 / 11 Years ago, tue, april 16, 2013, 12:00:00

Seems pretty simple, but cannot figure out why this javascript code isn't working returning false, when expecting true) - I'm guessing it has got to do something with the escape characters? Could someone please help me write a JS block that will return true if whitespace present?

var inValid = new RegExp([s]);

var value = test space;

var k = inValid.test(value);

alert(k);

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gabriellagiselc

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3 Years ago

answered 11 Years ago ryanulyssesb · Accepted Answer

You don't need the brackets, you would need to escape the backslash (if using the string form) and the built-in regex syntax is easier because you don't have to escape backslashes when using the built-in regex syntax.

var inValid = /s/;

var value = test space;

var k = inValid.test(value);

alert(k);