There are several ways to achieve nearly the same effect in JavaScript. The resulting primitive is then converted to a string.

Objects are first converted to a primitive by calling its (with 'string' as hint), toString(), and valueOf() methods, in that order.

BigInts are converted with the same algorithm as toString(10).

Numbers are converted with the same algorithm as toString(10).

true turns into 'true' false turns into 'false'.

The operation can be summarized as follows: Many built-in operations that expect strings first coerce their arguments to strings (which is largely why String objects behave similarly to string primitives).

Object.prototype._lookupSetter_() Deprecated.

Object.prototype._lookupGetter_() Deprecated.

Object.prototype._defineSetter_() Deprecated.

Object.prototype._defineGetter_() Deprecated.

The example includes a call to the IndexOf(String) method if a substring is found in a string instance. If you are interested in the position of the substring value in the current instance, you can call the IndexOf method to get the starting position of its first occurrence, or you can call the LastIndexOf method to get the starting position of its last occurrence. ' Does 'This is a string.' contain 'this'?

' The example displays the following output: String^ s1 = 'The quick brown fox jumps over the lazy dog' Ĭonsole::WriteLine( 'Is the string, s2, in the string, s1?: ', comp, s.Contains(sub1, comp))

If 'fox' is found in the string, it also displays its starting position. The following example determines whether the string 'fox' is a substring of a familiar quotation.

Javascript string contains