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Php Basic Intro

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Number Format In Javascript

Number.toFixed() :                                 Formats any number for "x" number of trailing decimals. The number is rounded up, and "0"s are used after the decimal point if needed to create the desired decimal length.   var profits=2489.8237 profits.toFixed(3) //returns 2489.824 (round up) profits.toFixed(2) //returns 2489.82 profits.toFixed(7) //returns 2489.8237000 (padding)   Number.toPrecision() :                                   Formats any number so it is of "x" length. Also called significant digits. A decimal point and "0"s are used if needed to create the desired length.   var anumber=123.45 anumber.toPreci...
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Use of indexOf and charAt in javascript

indexOf(): The indexOf() method returns the position of the first occurrence of a specified value in a string. This method returns -1 if the value to search for never occurs. example :  <script type="text/javascript"> var str="Hello world!"; document.write(str.indexOf("d") + "<br />"); document.write(str.indexOf("WORLD") + "<br />"); document.write(str.indexOf("world")); </script> Output : 10 -1 6 charAt() The charAt() method returns the character at the specified index in a string. The index of the first character is 0, and the index of the last character in a string called "txt", is txt.length-1 <script type="text/javascript"> var str = "Hello world!"; document.write("First character: " + str.charAt(0) + "<br />"); document.write("Last character: " + str.charAt(str.l...
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Disable right click

Hello there Sometimes we want to disable right click in our webpage for security reason. That we can do with the use of javascript. here is the code     <SCRIPT TYPE="text/javascript">             var message="Sorry, right-click has been disabled";                         function clickIE() {                 if (document.all) {                     (message);                     return false;                 }             }             function clickNS(e) {  ...
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