Created
January 24, 2020 03:02
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Permite solo un punto y un decimal
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<input type="text" onkeypress="return filterFloat(event,this);"> | |
<script> | |
function filterFloat(evt,input){ | |
// Backspace = 8, Enter = 13, ‘0′ = 48, ‘9′ = 57, ‘.’ = 46, ‘-’ = 43 | |
var key = window.Event ? evt.which : evt.keyCode; | |
var chark = String.fromCharCode(key); | |
var tempValue = input.value+chark; | |
if(key >= 48 && key <= 57){ | |
if(filter(tempValue)=== false){ | |
return false; | |
}else{ | |
return true; | |
} | |
}else{ | |
if(key == 8 || key == 13 || key == 0) { | |
return true; | |
}else if(key == 46){ | |
if(filter(tempValue)=== false){ | |
return false; | |
}else{ | |
return true; | |
} | |
}else{ | |
return false; | |
} | |
} | |
} | |
function filter(__val__){ | |
var preg = /^([1-7]\.?[0-9]{0,1})$/; | |
if(preg.test(__val__) === true){ | |
return true; | |
}else{ | |
return false; | |
} | |
} | |
</script> |
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