special characters javascript code example
Example 1: how to check for special characters in javascript
var format = /[!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?]+/;
if(format.test(string)){
return true;
} else {
return false;
}
Example 2: javascript escape html
function escapeHtml(str) {
return str.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">").replace(/"/g, """).replace(/'/g, "'");
}
Example 3: js escape characters
JS Escape Characters
\' — Single quote
\" — Double quote
\\ — Backslash
\b — Backspace
\f — Form feed
\n — New line
\r — Carriage return
\t — Horizontal tabulator
WebsiteSetup.org - Beginner’s Javascript Cheat Sheet 7
\v — Vertical tabulator
Example 4: javascript html special characters
return mystring.replace(/&/g, "&").replace(/>/g, ">").replace(/</g, "<").replace(/"/g, """);
Example 5: escape in javascript
escape sequences in javascript
\' single quote
\" doucle quote
\\ backslash
\n newline
\r carriage return
\t tab
\b backspace
\f form feed
Example 6: javascript have special characters
var format = /[ `!@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?~]/;
// ^ ^
document.write(format.test("My@string-with(some%text)") + "<br/>");
document.write(format.test("My string with spaces") + "<br/>");
document.write(format.test("MyStringContainingNoSpecialChars"));