JavaScriptPractice/string.html at main · EduKeyPath/JavaScriptPractice · GitHub

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<!DOCTYPE html>
<htmllang="en">
<head>
<metacharset="UTF-8">
<title>demo</title>
</head>
<body>
<p>
 "ABCDEFGHIJ\"K\"LMNOPQRSTUVWXYZ" <br/>
<b>String Lenght :</b><spanid="sL"></span>
</p>
<script>
vara="ABCDEFGHIJ\"K\"LMNOPQRS\\TUVWXYZ"
varb=a.length;
document.getElementById('sL').innerHTML=b;
</script>

<p>
 "The difference is that is substring() cannot accept negative indexes." <br/>
<b>Postion of difference (search):</b><spanid="p1"></span><br/>
<b>Postion of is (index of):</b><spanid="p2"></span><br/>
<b>Postion of negative (last index of):</b><spanid="p3"></span><br/>
</p>

<script>
varc="The difference is that is substring() cannot accept negative indexes.";
vard=c.search('difference');
document.getElementById('p1').innerHTML=d;

vare=c.indexOf('is',17);
document.querySelector('#p2').innerHTML=e;

varf=c.lastIndexOf('negative');
document.querySelector('#p3').innerHTML=f;
</script>

<p>
 "The method takes 2 parameters: the starting index (position), and the ending index (position)." <br/>
<b>Slice of (method):</b><spanid="s1"></span><br/>
<b>Substring of (takes):</b><spanid="s2"></span><br/>
<b>Substr (parameters):</b><spanid="s3"></span><br/>
</p>

<script>
varg="The method takes 2 parameters: the starting index (position), and the ending index (position)."
varh=g.slice(4,-50);
document.getElementById('s1').innerHTML=h;

vari=g.substring(11,16);
document.getElementById('s2').innerHTML=i;

varj=g.substr(19,10);
document.getElementById('s3').innerHTML=j;
</script>


<p>
 "The ‘with’ keyword is used as a 'kInd' of shorthand for 'kind' an object's 'Kind' or methods." <br/>
<b>Replace ‘with’ of SingleReplae:</b><spanid="r1"></span><br/>
<b>Replace 'kind' of Global Replae:</b><spanid="r2"></span><br/>
</p>
<script>
vark="The ‘with’ keyword is used as a 'kInd' of shorthand for 'kind' an object's 'Kind' or methods.";
varl=k.replace('with','SingleReplae');
document.getElementById('r1').innerHTML=l;

varm=k.replace(/kind/gi,'Global Replae');
document.getElementById('r2').innerHTML=m;
</script>

<p>
 "JavaScript has several built-in or native objects." <br/>
<b>Upercase:</b><spanid="u1"></span><br/>
<b>Lowercase:</b><spanid="l2"></span><br/>
</p>
<script>
varn="JavaScript has several built-in or native objects.";
varo=n.toUpperCase();
varp=n.toLowerCase();
document.getElementById('u1').innerHTML=o;
document.getElementById('l2').innerHTML=p;
</script>

<p>
 "JavaScript Number Object" <br/>
 "JavaScript Boolean Object" <br/>
 "JavaScript Number Object" <br/>
 "JavaScript Boolean Object" <br/>
<b>Concat:</b><spanid="c1"></span>
</p>
<script>
varq="JavaScript Number Object";
varr="JavaScript Boolean Object";
vars="JavaScript Number Object";
vart="JavaScript Boolean Object";
varu=q.concat(r+s+t);
document.querySelector('#c1').innerHTML=u;
</script>

<p>
 " &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; regular expression instead:" <br/>
<b>trim:</b><spanid="t1"></span>
</p>
<script>
varv=" regular expression instead:";
varw=v.trim();
document.getElementById('t1').innerHTML=w;
</script>

<p>
 "Extracting String Characters" <br/>
<b>Extracting(S) char at:</b><spanid="e1"></span><br/>
<b>Extracting(S) propery access:</b><spanid="e2"></span>
</p>
<script>
varx="Extracting String Characters";
document.querySelector('#e1').innerHTML=x.charAt(1);
document.querySelector('#e2').innerHTML=x[0];
</script>

<p>
 "Converting a String to an Array - "a,b,c,d,e" <br/>
<b>Array:</b><spanid="st1"></span>
</p>
<script>
varz="a,b,c,d,e";
varzz=z.split(',')
document.querySelector('#st1').innerHTML=zz[1];
</script>


<pid="demo"></p>
<script>
varstr="Hello";
vararr=str.split("");
vartext="";
vari;
for(i=0;i<arr.length;i++){
text+=arr[i]+"<br>"
}
document.getElementById("demo").innerHTML=text;
</script>

<p>You access an array element by referring to the index number.</p>
<pid="demo5"></p>
<script>
varp="You access an array, element by referring, to the index number.";
varq=p.split(',');
/*var q = p.split('');
 var txt = '';
 for (i = 0; i < p.length; i++){
 txt += q[i] + '</br>';
 }
 document.getElementById('demo5').innerHTML = txt;*/
document.getElementById('demo5').innerHTML=q[0];
</script>

<pid="demo1"></p>
<script>
varx=555;
vary=x.toString();
document.getElementById('demo1').innerHTML=y;
</script>

<p>toFixed - a = 9.5768589</p>
<pid="demo3"></p>
<script>
vara=9.5768589;
varb=a.toFixed();
varc=a.toFixed(3);
document.getElementById('demo3').innerHTML=b;
</script>

<p>toFixed - a = 9.5768589</p>
<pid="demo4"></p>
<script>
vara=9.8768589;
varb=a.toPrecision();
varc=a.toPrecision(3);
vard=parseInt(a.toFixed(2));
vare=parseFloat(a.toFixed(2));
varf=Number(a.toPrecision(4));
document.getElementById('demo4').innerHTML=f;
</script>


<br/><br/><br/><br/><br/><br/><br/>
</body>
</html>