Something wrong with String search() method.

[DarkOverkill]

search() - can't see difference between character '.' and '_'.

str = 'foo_bar';
strPoint = 'foo.bar';
console.log('--------str test--------'); // smt wrong with first
console.log('search by point: ' + str.search('.bar')); // will return 3
console.log('indexOf by point: ' + str.indexOf('.bar')); // will return -1
console.log('search by underscore: ' + str.search('_bar')); // will return 3
console.log('indexOf by underscore: ' + str.indexOf('_bar')); // will return 3
console.log('--------strPoint test--------'); // in this case work correctly
console.log('search by point: ' + strPoint.search('.bar')); // will return 3
console.log('indexOf by point: ' + strPoint.indexOf('.bar')); // will return 3
console.log('search by underscore: ' + strPoint.search('_bar')); // will return -1
console.log('indexOf by underscore: ' + strPoint.indexOf('_bar')); // will return -1

was tested on:
Chromiun - Version 55.0.2883.87 Built on Ubuntu , running on Ubuntu 16.04 (64-bit)
Google Chrome - Version 53.0.2785.116 (64-bit)
Firefox - 50.1.0

Is this a bug? Or some feature, which I don't know about?

[shvaikalesh]

String.prototype.search converts argument to a regular expression, thus dot matches any (except newline) character.

[shvaikalesh]

String.prototype.search converts argument to a regular expression, thus dot matches any (except newline) character.

[bakkot]

String.prototype.search takes a regex argument, not a string (apassed string is converted to a regex), and . in a regex matches any non-newline character.

StackOverflow is probably a better place for this kind of question.

[bakkot]

String.prototype.search takes a regex argument, not a string (apassed string is converted to a regex), and . in a regex matches any non-newline character.

StackOverflow is probably a better place for this kind of question.