function includeDollarSymbolText(text) {
text = text.replace(/\$[a-z]+\$/gi, "");
if (text.search(/\$/) != -1) {
return false;
}
return true;
}
console.log(includeDollarSymbolText("node abc xy $text$ z")); // ok
console.log(includeDollarSymbolText("node abc xy $ text$ z")); // space
console.log(includeDollarSymbolText("node abc xy $$ z")); // empty
console.log(includeDollarSymbolText("node abc 100 $text$ z")); // ok
console.log(includeDollarSymbolText("node abc $1000 $text$ z")); // open $
console.log(includeDollarSymbolText("node abc xy $IBM$ z $Microsoft$")); // ok
console.log(includeDollarSymbolText("node abc xy $F3$ z")); // include number
console.log(includeDollarSymbolText("node abc xy $text z")); // missing close $
/*
run:
true
false
false
true
false
true
false
false
*/