song += '!' const O = 'Tannenbaum' let song = 'Let it snow' song += '!' Program VariableDeclaration {type: ‘var’} VariableDeclaration {type: ‘var’} ExpressionStatement VariableDeclarator VariableDeclarator AssignmentExpression {operator: ‘+=‘} Identifier: O Literal: “Tannenbaum” Identifier: song Literal: “Let is snow” Identifier: song Literal: “!”
song += '!' const O = 'Tannenbaum' let song = 'Let it snow' song += '!' Program VariableDeclaration {type: ‘var’} VariableDeclaration {type: ‘var’} ExpressionStatement VariableDeclarator VariableDeclarator AssignmentExpression {operator: ‘+=‘} Identifier: O Literal: “Tannenbaum” Identifier: song Literal: “Let is snow” Identifier: song Literal: “!”
song += '!' const O = 'Tannenbaum' let song = 'Let it snow' song += '!' Program VariableDeclaration {type: ‘const’} VariableDeclaration {type: ‘let’} ExpressionStatement VariableDeclarator VariableDeclarator AssignmentExpression {operator: ‘+=‘} Identifier: O Literal: “Tannenbaum” Identifier: song Literal: “Let is snow” Identifier: song Literal: “!”
song += '!' const O = 'Tannenbaum' let song = 'Let it snow' song += '!' Program VariableDeclaration {type: ‘const’} VariableDeclaration {type: ‘let’} ExpressionStatement VariableDeclarator VariableDeclarator AssignmentExpression {operator: ‘+=‘} Identifier: O Literal: “Tannenbaum” Identifier: song Literal: “Let is snow” Identifier: song Literal: “!”