59         const result = [1, 2, 3, 4].findIndex((x, i, arr) => {  variable
63        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 2
68         const result = [1, 2, 3, 4].findIndex((x, i, arr) => {  variable
72        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: -1
77         const result = [].findIndex((x, i, arr) => {  variable
81        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: -1
86         const result = [false, 0, ''].findIndex((x, i, arr) => {  variable
90        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 0
95         const result = [1, 2, 3, 4].findIndex((x, i, arr) => {  variable
99        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 2
104         const result = [null, 1, 2].findIndex((x, i, arr) => {  variable
108        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 1
114         const result = arr.findIndex((x, i, arrRef) => {
119        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 2
124         const result = [NaN, 1, 2].findIndex((x, i, arr) => {  variable
128        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 1
133         const result = [1, 2, 3].findIndex((x, i, arr) => {  variable
137        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: -1
142         const result = [1, 2, 3].findIndex((x, i, arr) => {  variable
146        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 0
152         const result = [1, 2, 3, 4].findIndex(function(x, i, arr) {  variable
156        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 2
161         const result = [{ id: 1 }, { id: 2 }].findIndex((x, i, arr) => {  variable
165        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 1
171         const result = [obj, obj].findIndex((x, i, arr) => {  variable
176        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 0
181         const result = [].findIndex((x, i, arr) => {  variable
185        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: -1
192         const result = arr.findIndex((x, i, arrRef) => {
197        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 1
202         const result = [[1], [2], [3]].findIndex((x, i, arr) => {  variable
206        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 1
211         const result = [1, 2, 3, -1, 5].findIndex((x, i, arr) => {  variable
215        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 3
220         const result = ['apple', 'banana', 'cherry'].findIndex((x, i, arr) => {  variable
224        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 1
229         const result = [{ name: 'Alice' }, { name: 'Bob' }].findIndex((x, i, arr) => {  variable
233        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 1
238         const result = [{ age: 30 }, { age: 25 }, { age: 30 }].findIndex((x, i, arr) => {  variable
242        print("Log:", JSON.stringify(log), "Result:", JSON.stringify(result)); // Result: 0