I'm looking to extract ASCII codes from elements within an array. Here's a sample array:
var elem = ["Joe", "M"+String.fromCharCode(13)+"ry", "Element_03", "Element_04"];I tried using a for loop to scan through the array and check for ASCII codes in each element, but so far I haven't been successful.
let table={};
characters.forEach(function(item){
for(let index=0;index<item.length;index++){
table[item.charCodeAt(index)]=true;
}
});
console.log(Object.keys(table));
Iterate through the characters in the provided array and add each character's code to a hash table.
It seems like you're looking to identify non-alphanumeric characters within each element of an array. For instance, the character with CharCode 13 represents a carriage return. Depending on your definition of "special," this approach might be helpful.
const elements = ["Joe", "M"+String.fromCharCode(13)+"ry", "Element_03", "Element_04"];
const foundCodes = {};
elements.join('').split('').forEach(character => {
const code = character.charCodeAt(0);
if ( code < 32 || code > 126 ) {
foundCodes[code] = true;
}
});
console.log(Object.keys(foundCodes));
I'm referring to this ASCII table for assistance, but you can see the results directly in my code.
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