How to confirm whether it is a valid keyboard input value by JavaScript
This article is about JavaScript's ability to determine if a valid keyboard input is valid. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.
function checkKey(iKey) {
if (iKey == 32 || iKey == 229) {
return true;
} /* Spaces and exceptions */
if (iKey > 47 && iKey
< 58) { return true; } /*数字*/ if (iKey >64 && iKey
< 91) { return true; } /*字母*/ if (iKey >95 && iKey
< 108) { return true; } /*数字键盘1*/ if (iKey >108 && iKey
< 112) { return true; } /*数字键盘2*/ if (iKey >185 && iKey
< 193) { return true; } /*符号1*/ if (iKey >218 && iKey < 223) {
return true;
} /* Symbol 2*/
return false;
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