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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>JS String Methods</title>
<style>
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<body>
<h1>JS String Methods</h1>
<hr />
<h3>
<br />
String Methods:
</h3>
<table class="table table-striped table-bordered">
<thead>
<tr>
<th>
<p dir="ltr">Instance Methods</p>
</th>
<th>
<p dir="ltr">Description</p>
</th>
</tr>
</thead>
<tbody>
<tr>
<td>at()</td>
<td>Find the character at the specified index.</td>
</tr>
<tr>
<td>anchor()</td>
<td>Creates an anchor element that is used as a hypertext target.</td>
</tr>
<tr>
<td>charAt()</td>
<td>Returns that character at the given index of the string.</td>
</tr>
<tr>
<td>charCodeAt()</td>
<td>
Returns a Unicode character set code unit of the character present
at the index in the string.
</td>
</tr>
<tr>
<td>codePointAt()</td>
<td>
Return a non-negative integer value i.e, the code point value of the
specified element.
</td>
</tr>
<tr>
<td>concat()</td>
<td>Join two or more strings together in JavaScript.</td>
</tr>
<tr>
<td>endsWith()</td>
<td>
Whether the given string ends with the characters of the specified
string or not.
</td>
</tr>
<tr>
<td>includes()</td>
<td>
Returns true if the string contains the characters, otherwise, it
returns false.
</td>
</tr>
<tr>
<td>indexOf()</td>
<td>
Finds the index of the first occurrence of the argument string in
the given string.
</td>
</tr>
<tr>
<td>lastIndexOf()</td>
<td>
Finds the index of the last occurrence of the argument string in the
given string.
</td>
</tr>
<tr>
<td>localeCompare()</td>
<td>Compare any two elements and returns a positive number</td>
</tr>
<tr>
<td>match()</td>
<td>Search a string for a match against any regular expression.</td>
</tr>
<tr>
<td>matchAll()</td>
<td>
Return all the iterators matching the reference string against a
regular expression.
</td>
</tr>
<tr>
<td>normalize()</td>
<td>Return a Unicode normalization form of a given input string.</td>
</tr>
<tr>
<td>padEnd()</td>
<td>
Pad a string with another string until it reaches the given length
from rightend.
</td>
</tr>
<tr>
<td>padStart()</td>
<td>
Pad a string with another string until it reaches the given length
from leftend.
</td>
</tr>
<tr>
<td>repeat()</td>
<td>
Build a new string containing a specified number of copies of the
string.
</td>
</tr>
<tr>
<td>replace()</td>
<td>
Replace a part of the given string with some another string or a
regular expression
</td>
</tr>
<tr>
<td>replaceAll()</td>
<td>
Returns a new string after replacing all the matches of a string
with a specified string/regex.
</td>
</tr>
<tr>
<td>search()</td>
<td>Search for a match in between regular expressions and a</td>
</tr>
<tr>
<td>slice()</td>
<td>Return a part or slice of the given input string.</td>
</tr>
<tr>
<td>split()</td>
<td>
Separate given string into substrings using a specified separator
provided in the argument.
</td>
</tr>
<tr>
<td>startsWith()</td>
<td>
Check whether the given string starts with the characters of the
specified string or not.
</td>
</tr>
<tr>
<td>substr()</td>
<td>
Returns the specified number of characters from the specified index
from the given string.
</td>
</tr>
<tr>
<td>substring()</td>
<td>
Return the part of the given string from the start index to the end
index.
</td>
</tr>
<tr>
<td>toLocaleUpperCase()</td>
<td>
Returns the calling string value converted to a uppercase letter.
</td>
</tr>
<tr>
<td>toUpperCase()</td>
<td>Converts the entire string to uppercase.</td>
</tr>
<tr>
<td>toString()</td>
<td>Return the given string itself.</td>
</tr>
<tr>
<td>trim()</td>
<td>Remove the white spaces from both ends of the given string.</td>
</tr>
<tr>
<td>trimEnd()</td>
<td>Remove white space from the end of a string.</td>
</tr>
<tr>
<td>trimStart()</td>
<td>Remove white space from the start of a string.</td>
</tr>
<tr>
<td>valueOf()</td>
<td>Return the value of the given string.</td>
</tr>
<tr>
<td>
<p dir="ltr">string[Symbol.iterator]()</p>
</td>
<td>
<p dir="ltr">
This method is used to make String iterable. [@@iterator]()
returns an iterator object which iterates over all code points of
the String.
</p>
</td>
</tr>
<tr>
<td>toLowerCase()</td>
<td>Converts the entire string to lowercase.</td>
</tr>
<tr>
<td>toLocaleLowerCase()</td>
<td>
Returns the calling string value converted to a lowercase letter.
</td>
</tr>
</tbody>
</table>
<pre
class="language-markup"
tabindex="0"
><code class="language-markup"><span class="token doctype"><span class="token punctuation"><!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>html</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>title</span><span class="token punctuation">></span></span>JavaScript<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>title</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>script</span><span class="token punctuation">></span></span><span class="token script"><span class="token language-javascript">
<span class="token keyword">var</span> str <span class="token operator">=</span> <span class="token string">" JavaScript is a Great is Language"</span><span class="token punctuation">;</span>
<span class="token keyword">var</span> a <span class="token operator">=</span> str<span class="token punctuation">.</span>length<span class="token punctuation">;</span> <span class="token comment">/* Length Method */</span>
<span class="token keyword">var</span> b <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">toLowerCase</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* LowerCase Method */</span>
<span class="token keyword">var</span> c <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">toUpperCase</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* UpperCase Method */</span>
<span class="token keyword">var</span> d <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">includes</span><span class="token punctuation">(</span><span class="token string">"ipt"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* Include Method */</span>
<span class="token keyword">var</span> e <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">startsWith</span><span class="token punctuation">(</span><span class="token string">"Java"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* StartWith Method */</span>
<span class="token keyword">var</span> f <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">endsWith</span><span class="token punctuation">(</span><span class="token string">"age"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* EndWith Method */</span>
<span class="token keyword">var</span> g <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">search</span><span class="token punctuation">(</span><span class="token string">"is"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* Search Method */</span>
<span class="token keyword">var</span> h <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">match</span><span class="token punctuation">(</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">is</span><span class="token regex-delimiter">/</span><span class="token regex-flags">g</span></span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* Match Method */</span>
<span class="token keyword">var</span> i <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">indexOf</span><span class="token punctuation">(</span><span class="token string">"is"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* IndexOf Method */</span>
<span class="token keyword">var</span> j <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">lastIndexOf</span><span class="token punctuation">(</span><span class="token string">"is"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* LastIndexOf Method */</span>
<span class="token keyword">var</span> k <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">replace</span><span class="token punctuation">(</span><span class="token string">"JavaScript"</span><span class="token punctuation">,</span><span class="token string">"PHP"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* Replace Method */</span>
<span class="token keyword">var</span> l <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">trim</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">/* Trim Method */</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>a <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>b <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>c <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>d <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>e <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>f <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>g <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>h <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>i <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>j <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
document<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>k <span class="token operator">+</span> <span class="token string">"<br>"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">alert</span><span class="token punctuation">(</span>l<span class="token punctuation">)</span><span class="token punctuation">;</span>
</span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>script</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>head</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>body</span><span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>html</span><span class="token punctuation">></span></span></code></pre>
<hr />
</body>
<script>
let str = " This Is Is The Original ";
document.write(str + "<br>");
let a = str.length;
document.write(a + "<br>");
a = str.toLowerCase();
document.write(a + "<br>");
a = str.toUpperCase();
document.write(a + "<br>");
a = str.includes("Original");
document.write(a + "<br>");
a = str.startsWith(" ");
document.write(a + "<br>");
a = str.endsWith(" ");
document.write(a + "<br>");
a = str.search("Is");
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a = str.match(/Is/g);
document.write(a + "<br>");
a = str.indexOf("Is");
document.write(a + "<br>");
a = str.lastIndexOf("Is");
document.write(a + "<br>");
a = str.replace("Is", "");
document.write(a + "<br>");
a = str.trim();
document.write(a + "<br>");
</script>
</html>