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15 lines
469 B
JavaScript
15 lines
469 B
JavaScript
function formatted_string(pad, user_str, pad_pos)
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{
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if (typeof user_str === 'undefined')
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return pad;
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if (pad_pos == 'l')
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{
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return (pad + user_str).slice(-pad.length);
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}
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else
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{
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return (user_str + pad).substring(0, pad.length);
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}
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}
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console.log(formatted_string('0000',123,'l'));
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console.log(formatted_string('00000000',123,''));
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