^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9])(?=.*?[#?!@$%^&*-]).{8,}$<br />

<br /> Minimum eight characters, at least one letter and one number:<br /> “^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,}$”</p> <p>Minimum eight characters, at least one letter, one number and one special character:<br /> “^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!%*#?&]{8,}$”</p> <p>Minimum eight characters, at least one uppercase letter, one lowercase letter and one number:<br /> “^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$”</p> <p>Minimum eight characters, at least one uppercase letter, one lowercase letter, one number and one special character:<br /> “^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$”</p> <p>Minimum eight and maximum 10 characters, at least one uppercase letter, one lowercase letter, one number and one special character:<br /> “^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,10}$”

r’^<br /> (?=.*[A-Z]) // should contain at least one upper case<br /> (?=.*[a-z]) // should contain at least one lower case<br /> (?=.*?[0-9]) // should contain at least one digit<br /> (?=.*?[!@#\$&*~]) // should contain at least one Special character<br /> .{8,} // Must be at least 8 characters in length<br /> $<br />

/^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$^&*()_-]).{8,18}$/

function validate(password) {<br /> return /^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9])[A-Za-z0-9]{6,}$/.test(password);<br /> }</p> <p>Explanation:</p> <p>^ // start of input<br /> (?=.*?[A-Z]) // Lookahead to make sure there is at least one upper case letter<br /> (?=.*?[a-z]) // Lookahead to make sure there is at least one lower case letter<br /> (?=.*?[0-9]) // Lookahead to make sure there is at least one number<br /> [A-Za-z0-9]{6,} // Make sure there are at least 6 characters of [A-Za-z0-9]<br /> $ // end of input<br />

// minimum 8 characters , minimum one specil charecter , minimum one uppercase and one lowercase letter required<br /> /^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$/

“^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,10}$”<br />

^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!@#\$%\^&\*])(?=.{8,})

“^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!%*#?&]{8,}$”<br />

^ # start-of-string<br /> (?=.*[0-9]) # a digit must occur at least once<br /> (?=.*[a-z]) # a lower case letter must occur at least once<br /> (?=.*[A-Z]) # an upper case letter must occur at least once<br /> (?=.*[@#$%^&+=]) # a special character must occur at least once<br /> (?=\S+$) # no whitespace allowed in the entire string<br /> .{8,} # anything, at least eight places though<br /> $ # end-of-string