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daniel-g
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Javascript Strings
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String
charAt()
var str = "HELLO WORLD";var res = str.charAt(0);
// H
charCodeAt()
var str = "HELLO WORLD";var n = str.charCodeAt(0);
/72
concat()
var str1 = "Hello ";var str2 = "world!";var res = str1.concat(str2);
// Hello world
fromCharCode()
var res = String.fromCharCode(65);
// A
indexOf()
var str = "Hello world, welcome to the universe.";var n = str.indexOf("welcome");
// 13
lastIndexOf()
var str = "Hello planet earth, you are a great planet.";var n = str.lastIndexOf("planet");
// 36
match()
var str = "The rain in SPAIN stays mainly in the plain"; var res0 = str.match(/ain/g); //global
var res1 = str.match(/ain/gi); //global ignore case
// ain,ain,ain
// ain,AIN,ain,ain
replace
var str = "Visit Microsoft!";var res = str.replace("Microsoft", “Apple");
// Visit Apple
Search()
var str = "Visit Apple!";var n = str.search(“Apple");
// 6
slice()
var str = "Hello world!";var res = str.slice(1,5);
// ello
split()
var str = "How are you doing today?";var res = str.split(" ");
// How,are,you,doing,today? (array)
substr()
var str = "Hello world!";var res = str.substr(1, 4)
//ello
// desde el 1º 4 caracteres
substring()
var str = "Hello world!";var res = str.substring(1, 4);
// ell
// desde el 1º al 4º caracter sin incluirlo.
toLowerCase()
var str = "Hello World!";var res = str.toLowerCase();
// hello world
toUpperCase()
var str = "Hello World!";var res = str.toUpperCase();
// HELLO WORLD
trim()
var str = " Hello World! ";alert(str.trim());
//Hello World
valueOf
var str = “1234";var res = str.valueOf();
// 1234
anchor()
var txt = "Chapter 10";txt.anchor("chap10");
// <a name="chap10">Chapter 10</a>
big()
var str = "Hello World!";var result = str.big();
// Hello World!
Y más…var txt = "Hello World!";
document.write("The original string: " + txt);document.write("<p>Big: " + txt.big() + "</p>");document.write("<p>Small: " + txt.small() + "</p>");document.write("<p>Bold: " + txt.bold() + "</p>");document.write("<p>Italic: " + txt.italics() + "</p>");document.write("<p>Fixed: " + txt.fixed() + "</p>");document.write("<p>Strike: " + txt.strike() + "</p>");document.write("<p>Fontcolor: " + txt.fontcolor("green") + "</p>");document.write("<p>Fontsize: " + txt.fontsize(6) + "</p>");document.write("<p>Subscript: " + txt.sub() + "</p>");document.write("<p>Superscript: " + txt.sup() + "</p>");document.write("<p>Link: " + txt.link("http://www.itmaster.com.ar") + "</p>");