Fix column name indexing for p5.Table

Author: limzykenneth

src/io/p5.Table.js

@@ -259,7 +259,7 @@ class Table {
   // try the Object
     if (typeof column === 'string') {
       for (let i = 0; i < this.rows.length; i++) {
-        if (this.rows[i].obj[column] === value) {
+        if (this.rows[i].obj[this.columns.indexOf(column)] === value) {
           return this.rows[i];
         }
       }
@@ -324,7 +324,7 @@ class Table {
     const ret = [];
     if (typeof column === 'string') {
       for (let i = 0; i < this.rows.length; i++) {
-        if (this.rows[i].obj[column] === value) {
+        if (this.rows[i].obj[this.columns.indexOf(column)] === value) {
           ret.push(this.rows[i]);
         }
       }
@@ -387,7 +387,7 @@ class Table {
       }
     } else {
       for (let i = 0; i < this.rows.length; i++) {
-        if (this.rows[i].obj[column].match(regexp)) {
+        if (this.rows[i].obj[this.columns.indexOf(column)].match(regexp)) {
           return this.rows[i];
         }
       }
@@ -454,7 +454,7 @@ class Table {
       }
     } else {
       for (let i = 0; i < this.rows.length; i++) {
-        if (this.rows[i].obj[column].match(regexp)) {
+        if (this.rows[i].obj[this.columns.indexOf(column)].match(regexp)) {
           ret.push(this.rows[i]);
         }
       }