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20 lines
781 B
JavaScript
20 lines
781 B
JavaScript
//Some essential string object methods
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var myStr = "I'm feeling great.";
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var l = myStr.length;
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console.log("charater count:" + l);
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console.log(myStr[2]); //m
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console.log(myStr[4]); //f
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var subStr1 = myStr.slice(4,11); // returns starting position and up to (but not including) the ending position
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var subStr2 = myStr.slice(12); //returns part of the string from position 10
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console.log(subStr1);
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console.log(subStr2);
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var p1 = myStr.indexOf('feel');//returns 4, ie the substring is at pos 10
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var p2 = myStr.indexOf('test');// returns -1, which means not found
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console.log(p1 + ", " +p2)
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console.log(myStr.replace('feel','game'))
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console.log(myStr.toLowerCase());//convert entire string to lowercase
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console.log(myStr.toUpperCase());//convert entire string to uppercase
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